Dedicated server
Server version: Apache/2.2.22 (Debian)
mysql Ver 14.14 Distrib 5.5.38, for debian-linux-gnu (x86_64) using readline 6.2
mysqld Ver 5.5.38-0+wheezy1-log for debian-linux-gnu on x86_64 ((Debian))
previous errors appeared in error logs file each hours after update plugin version. After truncate plugin .._wsal_occurrences + .._wsal_meta tables errors not shown.