Atomicorp

I thougt i have to write in parallel's forum, but since we have many advanced plesk users here, i want to ask for help.
I had this error in 8.4 also, and upgrade to 8.6 did't help me (i thougt it should )

Plesk still working, but error is annoying me:
==============
MySQL query failed: Table './psa/event_handlers' is marked as crashed and should be repaired
0: /usr/local/psa/admin/plib/common_func.php3:250
db_query(string 'SELECT user, command FROM event_handlers WHERE action_id='54' ORDER BY priority ASC')
1: /usr/local/psa/admin/plib/class.ActionLog.php:648
ActionLog->callHandlers_()
2: /usr/local/psa/admin/plib/class.ActionLog.php:581
ActionLog->submit()
3: /usr/local/psa/admin/plib/cmd_loginup.php:358
createSessionAdmin(string 'admin', string '************************', string '***************************', boolean false)
4: /usr/local/psa/admin/plib/cmd_loginup.php:142
createSession(string 'admin', string '************************')
5: /usr/local/psa/admin/htdocs/login_up.php3:27
=============

i've already tryed to fix this using mysqlcheck, but it says this table is OK.
What else can i do?

You might need to restore the psa database from a backup. Plesk keeps 7 days of backups in /var/lib/psa/dumps/

but i updated since then to 8.6

i had 8.4 when problem appeared