Problem during update from 10 to 11

Hi Guys,

I’ve executed the update via the admin page in Nextcloud web interface. But the update procedure stops at point “Delete old files” with message “core/shipped.json is not available”.

That’s it.

Now I can’t access the web interface or any other page. Output is “Update in process”.

Here is the entry from my updater.log:

(…)
2017-02-18T12:12:16+0100 6YvXCBnoTj [error] Exception: Exception
Message: core/shipped.json is not available
Code:0
Trace:
#0 /home/sites/site91/web/nextcloud/updater/index.php(1135): Updater->deleteOldFiles()
#1 {main}
File:/home/sites/site91/web/nextcloud/updater/index.php
Line:702

2017-02-18T12:12:16+0100 6YvXCBnoTj [info] rollbackChanges(“8”)
2017-02-18T12:12:16+0100 6YvXCBnoTj [info] unlink .step
2017-02-18T12:12:16+0100 6YvXCBnoTj [info] rollbackChanges - step >= 7
2017-02-18T12:12:16+0100 6YvXCBnoTj [info] end of rollbackChanges()
2017-02-18T14:04:00+0100 uMuB5lVfDM [info] request to updater
2017-02-18T14:04:00+0100 uMuB5lVfDM [info] currentStep()
2017-02-18T14:04:00+0100 uMuB5lVfDM [info] POST request for step "8"
2017-02-18T14:04:00+0100 uMuB5lVfDM [info] startStep(“8”)
2017-02-18T14:04:00+0100 uMuB5lVfDM [info] deleteOldFiles()
2017-02-18T14:04:00+0100 uMuB5lVfDM [error] POST request failed with other exception
2017-02-18T14:04:00+0100 uMuB5lVfDM [error] Exception: Exception
Message: core/shipped.json is not available
Code:0
Trace:
#0 /home/sites/site91/web/nextcloud/updater/index.php(1135): Updater->deleteOldFiles()
#1 {main}
File:/home/sites/site91/web/nextcloud/updater/index.php
Line:702

2017-02-18T14:04:00+0100 uMuB5lVfDM [info] rollbackChanges(“8”)
2017-02-18T14:04:00+0100 uMuB5lVfDM [info] unlink .step
2017-02-18T14:04:00+0100 uMuB5lVfDM [info] rollbackChanges - step >= 7
2017-02-18T14:04:00+0100 uMuB5lVfDM [info] end of rollbackChanges()
2017-02-20T12:22:04+0100 A1ekytcksD [info] request to updater

(…)

I need help.

Many thanks in advance.