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`='80dd3c4c0f87001d2c95c05c275a2092',`time`=1711691857,`ip`=X'6b147be3',`location`='/newreply.php?tid=263&replyto=1652',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0