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`='9c6fcb2e20cd4486c9ed62285f541725',`time`=1711633356,`ip`=X'641a8cb3',`location`='/showthread.php?tid=306&action=lastpost',`useragent`='claudebot',`location1`=8,`location2`=306,`nopermission`=0