After the update the nextcloud server is not longer working

[alpha-phoenix42]

Hello,

I updated my nextcloud server from 12.0.5 to 13.0.0.

The updater starts fine. Have done a backup and so on. After I can chose to go in the command mode or in the web mode, I chose the web mode. It does not longer work any nextcloud version.

I also tested a fresh downloaded version (12.0.4 to 13.0.0).

All other server services works fine. Like e.g. dokuwiki, webmail (roundcube), mail (qmail,dovecot)

I only get a withe screen. I enabled the debug mode. Now I get the following message
===== START OF THE MESSAGE =====
Internal Server Error

The server encountered an internal error and was unable to complete your request.
Please contact the server administrator if this error reappears multiple times, please include the technical details below in your report.
More details can be found in the webserver log.
===== END OF THE MESSAGE =====

The last lines from some log files (I have removed my domain and IP address):
updater.log
2018-03-10T01:48:01+0000 u8UDVHlf0T [info] call opcache_reset()
2018-03-10T01:48:01+0000 u8UDVHlf0T [info] end of finalize()
2018-03-10T01:48:01+0000 u8UDVHlf0T [info] endStep("12")

nextcloud.log
{"reqId":"L9CF32bcBpORL2pDJiLn","level":3,"time":"2018-03-10T11:37:51+00:00","remoteAddr":"XX.XXX.XXX.XX","user":"--","app":"PHP","method": "GET","url":"/cloud/index.ph/","message":"Declaration of OCA\FilesAccessControl\StorageWrapper::copyFromStorage(OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) must be compatible with OCP\Files\Storage::copyFromStorage(OCP\Files\Storage\IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath) at /var/www/vhosts/MYDOMAIN/httpdocs/cloud/apps/files_accesscontrol/lib/StorageWrapper.php#628","userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:58.0) Gecko/20100101 Firefox/58.0","version":"12.0.5.3"}
{"reqId":"nPCc4CgWxf78cUngvFoI","level":0,"time":"2018-03-10T11:45:02+00:00","remoteAddr":"","user":"--","app":"cron","method":"--","url":"-- ","message":"Update required, skipping cron","userAgent":"--","version":"12.0.5.3"}

I other log files are nothing available.

I am using a plesk installation with:
NAME="Ubuntu"
VERSION="14.04.5 LTS, Trusty Tahr"
kernel-verison: 3.13.0-143-generic
php-version: 7.1.15 (I switch after the update back to 7.0.28 (no other results))

[rullzer]

It seems your files_accesscontrol app is not compatible. Try to disable it to gain access again. And then update it from the appstore.

[c0fe]

@rullzer shouldn't the error messages be a bit more clear if there compatibility issues or perhaps disable old apps and update them automatically?

[rullzer]

@c0fe it isn't us that throw this error. It is php. There isn't much we can do here.

[rullzer]

And the app should have been upgraded. But something went wrong it seems.

[MorrisJobke]

There were some problems for the files_accesscontrol app. Disable it, then go to the app management again and check if there is an update available (it should be in the meantime). This should fix the problem.