I enabled a apps including External Storage backend for Dropbox (https://apps.nextcloud.com/apps/files_external_dropbox). After enabling the app I get a Internal Server Error when logging in from the web browser. I did not configure the app and I would like to disable the app to resume a working installation.
I think this is the relevant part of /var/snap/nextcloud/common/nextcloud/data/nextcloud.log.
"Exception": "Doctrine\\DBAL\\Exception\\TableNotFoundException", "Message": "An exception occurred while executing 'SELECT `m`.`mount_id`, `mount_point`, `storage_backend`, `auth_backend`, `priority`, `m`.`type` FROM `oc_external_mounts` `m` INNER JOIN `oc_external_applicable` `a` ON `m`.`mount_id` = `a`.`mount_id` WHERE ((`a`.`type` = ?) AND (`a`.`value` IS NULL)) OR ((`a`.`type` = ?) AND (`a`.`value` = ?)) OR ((`a`.`type` = ?) AND (`a`.`value` IN (?, ?, ?)))' with params [1, 3, \"jimmy\", 2, \"Basic\", \"Executive\", \"admin\"]:\n\nSQLSTATE[42S02]: Base table or view not found: 1146 Table 'nextcloud.oc_external_mounts' doesn't exist", "Code": 0, "Trace": [