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`='ecc83052642958f875cd9b06f660eb25',`time`=1711695660,`ip`=X'343713bd',`location`='/showthread.php?tid=339&action=lastpost',`useragent`='claudebot',`location1`=5,`location2`=339,`nopermission`=0