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`='f5115678abf6afeefc091f63281f95b9',`time`=1711692516,`ip`=X'365c872f',`location`='/showthread.php?tid=50&action=newpost',`useragent`='claudebot',`location1`=7,`location2`=50,`nopermission`=0