Workflowengine: Failed to enable app workflowengine

nextcloud upgraded from 12.0.0 to 12.0.2 failed due to workflowengine failed to enable, my instance was migrated from owncloud, anyone have an idea on how to allow me process the upgrade,

Nextcloud version: 12.0.0.29
Operating system and version: Ubuntu 16.04
Apache or nginx version: Apache 2.4.18
PHP version: 7.0.22
Is this the first time you’ve seen this error?:
Yes
Can you reliably replicate it? (If so, please outline steps):

The issue you are facing:
Can’t successfully update nextcloud to latest version 12.0.2

The output of your Nextcloud log in Admin > Logging:
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:45+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::setDebugLogLevel: Set log level to debug",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:0,“time”:“2017-08-18T15:22:45+00:00”,“remoteAddr”:"",“user”:"–",“app”:“core”,“method”:"–",“url”:"–",“message”:“starting upgrade from 12.0.0.29 to 12.0.2.0”,“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:45+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Repair::step: Repair step: Repair MySQL collation",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:45+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Repair::info: Repair info: All tables already have the correct collation -> nothing to do",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:45+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Repair::step: Repair step: Repair SQLite autoincrement",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:45+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Repair::step: Repair step: Copy data from accounts table when migrating from ownCloud",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:45+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Repair::step: Repair step: Drop account terms table when migrating from ownCloud",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:45+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::dbUpgradeBefore: Updating database schema",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:46+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::dbUpgrade: Updated database",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:46+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “activity” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:47+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “activity” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:47+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “bruteforcesettings” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:47+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::upgradeAppStoreApp: Update app “bruteforcesettings” from appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “bruteforcesettings” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “comments” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “comments” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “dav” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “dav” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “federatedfilesharing” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “federatedfilesharing” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “federation” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “federation” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “files” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “files” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “files_pdfviewer” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “files_pdfviewer” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “files_sharing” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “files_sharing” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “files_texteditor” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “files_texteditor” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “files_trashbin” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “files_trashbin” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “files_versions” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “files_versions” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “files_videoplayer” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “files_videoplayer” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “firstrunwizard” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “firstrunwizard” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “gallery” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “gallery” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “logreader” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “logreader” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “lookup_server_connector” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “lookup_server_connector” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “nextcloud_announcements” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “nextcloud_announcements” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “notifications” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “notifications” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “oauth2” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “oauth2” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “password_policy” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “password_policy” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “provisioning_api” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “provisioning_api” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “serverinfo” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “serverinfo” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “sharebymail” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “sharebymail” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “socialsharing_email” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::upgradeAppStoreApp: Update app “socialsharing_email” from appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “socialsharing_email” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “survey_client” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “survey_client” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “systemtags” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “systemtags” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “templateeditor” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “templateeditor” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “theming” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “theming” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “twofactor_backupcodes” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “twofactor_backupcodes” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “updatenotification” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “updatenotification” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreAppBefore: Checking for update of app “workflowengine” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::checkAppStoreApp: Checked for update of app “workflowengine” in appstore",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:3,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“workflowengine”,“method”:"–",“url”:"–",“message”:“Exception: {“Exception”:“OC\\HintException”,“Message”:“Failed to enable app workflowengine”,“Code”:0,“Trace”:”#0 \/var\/www\/html\/nextcloud\/lib\/private\/Installer.php(501): OC\\Installer::installShippedApp(‘workflowengine’)\n#1 \/var\/www\/html\/nextcloud\/lib\/private\/Updater.php(272): OC\\Installer::installShippedApps(true)\n#2 \/var\/www\/html\/nextcloud\/lib\/private\/Updater.php(130): OC\\Updater->doUpgrade(‘12.0.2.0’, ‘12.0.0.29’)\n#3 \/var\/www\/html\/nextcloud\/core\/Command\/Upgrade.php(263): OC\\Updater->upgrade()\n#4 \/var\/www\/html\/nextcloud\/3rdparty\/symfony\/console\/Command\/Command.php(256): OC\\Core\\Command\\Upgrade->execute(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))\n#5 \/var\/www\/html\/nextcloud\/3rdparty\/symfony\/console\/Application.php(818): Symfony\\Component\\Console\\Command\\Command->run(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))\n#6 \/var\/www\/html\/nextcloud\/3rdparty\/symfony\/console\/Application.php(186): Symfony\\Component\\Console\\Application->doRunCommand(Object(OC\\Core\\Command\\Upgrade), Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))\n#7 \/var\/www\/html\/nextcloud\/3rdparty\/symfony\/console\/Application.php(117): Symfony\\Component\\Console\\Application->doRun(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))\n#8 \/var\/www\/html\/nextcloud\/lib\/private\/Console\/Application.php(170): Symfony\\Component\\Console\\Application->run(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))\n#9 \/var\/www\/html\/nextcloud\/console.php(100): OC\\Console\\Application->run()\n#10 \/var\/www\/html\/nextcloud\/occ(11): require_once(’\/var\/www\/html\/n…’)\n#11 {main}",“File”:"\/var\/www\/html\/nextcloud\/lib\/private\/Installer.php",“Line”:537}",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:3,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Updater::failure: workflowengine: Failed to enable app workflowengine",“userAgent”:"–",“version”:“12.0.0.29”}
{“reqId”:“kIOUlx1P9UAoVSZX39P0”,“level”:1,“time”:“2017-08-18T15:22:48+00:00”,“remoteAddr”:"",“user”:"–",“app”:“updater”,“method”:"–",“url”:"–",“message”:"\OC\Repair::step: Repair step: Repair MySQL collation",“userAgent”:"–",“version”:“12.0.0.29”}

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

<?php $CONFIG = array ( 'instanceid' => 'oc5dumnaq7ro', 'passwordsalt' => 'PGhNn3vEEwdFjzAI0o14vVItc6HoEm', 'secret' => 'JvK68RS1uNjgP7Ki82WeQyetnYfIQN5j4N7E3a98Fupu4d5l', 'trusted_domains' => array ( 0 => '*.*.*.*', ), 'datadirectory' => '/var/www/html/data', 'overwrite.cli.url' => 'http://*.*.*.*/', 'dbtype' => 'mysql', 'version' => '12.0.0.29', 'dbname' => 'nextcloud', 'dbhost' => 'localhost', 'dbport' => '', 'dbtableprefix' => 'oc_', 'dbuser' => 'oc_admin', 'dbpassword' => 'Jf+hGQx45XK5EIaSg7R1kH/rIH4PE2', 'logtimezone' => 'UTC', 'installed' => true, 'memcache.local' => '\\OC\\Memcache\\APCu', 'memcache.locking' => '\\OC\\Memcache\\Redis', 'redis' => array ( 'host' => 'localhost', 'port' => 6379, ), 'ldapIgnoreNamingRules' => false, 'ldapProviderFactory' => '\\OCA\\User_LDAP\\LDAPProviderFactory', 'mail_smtpmode' => 'smtp', 'mail_smtpsecure' => 'tls', 'mail_from_address' => 'it', 'mail_domain' => '*.com', 'mail_smtpauth' => 1, 'mail_smtpauthtype' => 'LOGIN', 'mail_smtphost' => 'outlook.office365.com', 'mail_smtpport' => '587', 'mail_smtpname' => 'it@*.com', 'mail_smtppassword' => '*', 'maintenance' => false, 'loglevel' => 0, 'trashbin_retention_obligation' => '60,61', 'versions_retention_obligation' => '60,61', 'activity_expire_days' => 180, 'updater.release.channel' => 'production', 'theme' => '', );