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`='f6bd993be146e0d3fef4a5f3778bd942',`time`=1711700851,`ip`=X'0355d7a4',`location`='/newreply.php?tid=243&replyto=1456',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0