Sharing with other users


in owncloud i can no longer share folders with other users. only by link. if i enter the user or the group nothing will be found. sharing app is activated. sharing app settings should fit.

does anyone have a hint?

Not known :frowning: If you can reproduce this behaviour, please open a bug report in github:

so i think this is mysql problem. in the log i found this
Syntax error or access violation: 1253 COLLATION ‘utf8mb4_general_ci’ is not valid for CHARACTER SET ‘utf8’ at /var/www/owncloud/lib/composer/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractMySQLDriver.php#115"}

how can i fix this?