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`='6b0ca678959bd5dc6dee2bf11267c48b',`time`=1711652193,`ip`=X'23adb23c',`location`='/newreply.php?tid=305&replyto=1864',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0