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`='eb1751e3a723ce4723c69da477014a86',`time`=1711704442,`ip`=X'2cc8bf92',`location`='/showthread.php?tid=446&action=newpost',`useragent`='claudebot',`location1`=29,`location2`=446,`nopermission`=0