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`='91cb81eef3ea40824dd894306a214f47',`time`=1711621503,`ip`=X'035a21fe',`location`='/showthread.php?tid=380&action=newpost',`useragent`='claudebot',`location1`=5,`location2`=380,`nopermission`=0