BadMethodCallException Error pn Owncloud 9.1.0

Hello I get these error on my Owncloud Server, i updatet from 9.0.1 to 9.1.0 buit the error ist still there.

Configuration:
Ubuntu 16.0.4 LTS
Owncloud 9.1.0
Webserver Apache2

Error:
**Exception: {“Exception”:“BadMethodCallException”,“Message”:“Not in **
**batch”,“Code”:0,“Trace”:"#0 **
/var/www/html/owncloud/lib/private/Files/Utils/Scanner.php(143):
** OC\Files\Cache\Propagator->commitBatch()\n#1 **
/var/www/html/owncloud/apps/files/lib/BackgroundJob/ScanFiles.php(87):
** OC\Files\Utils\Scanner->backgroundScan(‘’)\n#2 **
/var/www/html/owncloud/apps/files/lib/BackgroundJob/ScanFiles.php(111):

OCA\Files\BackgroundJob\ScanFiles->runScanner(Object(OC\User\User))\n#3
** /var/www/html/owncloud/lib/private/BackgroundJob/Job.php(52): **
**OCA\Files\BackgroundJob\ScanFiles->run(NULL)\n#4 **
/var/www/html/owncloud/lib/private/BackgroundJob/TimedJob.php(53):
** OC\BackgroundJob\Job->execute(Object(OC\BackgroundJob\JobList), **
**Object(OC\Log))\n#5 /var/www/html/owncloud/cron.php(122): **
OC\BackgroundJob\TimedJob->execute(Object(OC\BackgroundJob\JobList),
** Object(OC\Log))\n#6 **
{main}“,“File”:”/var/www/html/owncloud/lib/private/Files/Cache/Propagator.php",“Line”:145}

Update to 9.1.1RC2 which contains the fix

Ref BadMethodCallException in scanner from cron · Issue #25506 · owncloud/core · GitHub