MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
145 - Table './balkania_forum/mybb_sessions' is marked as crashed and should be repaired
Query:
REPLACE INTO mybb_sessions SET `uid`=0,`sid`='0adc42fed208b33ed00aca9912eb1768',`time`=1711706034,`ip`=X'0352e81f',`location`='/newreply.php?tid=374&replyto=2237',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0