The class `Kolab2FA\Log\Syslog` cannot be found on `/usr/share/roundcubemail/plugins/kolab_2fa/lib/Kolab2FA/Storage/Base.php` line 72.
No directory `plugins/kolab_2fa/lib/Kolab2FA/Log/` exists in the source code management repository rRPK. No reference to a logging library exists in the `plugins/kolab_2fa/composer.json` file.