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`='eda169e388d0134c7903e14786809cae',`time`=1711699364,`ip`=X'12cc2a59',`location`='/showthread.php?tid=36&action=newpost',`useragent`='claudebot',`location1`=6,`location2`=36,`nopermission`=0