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`='257251bcf2fdfebf2bc9990f62725f48',`time`=1711673491,`ip`=X'12d56ea2',`location`='/newreply.php?tid=309&replyto=742',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0