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`='963babb94a91963fd7be6c0428ca8e33',`time`=1711697402,`ip`=X'03ee6bee',`location`='/showthread.php?tid=24&action=lastpost',`useragent`='claudebot',`location1`=20,`location2`=24,`nopermission`=0