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`='0a8d4b078a49c997ebb3c6fb7658b12b',`time`=1711702003,`ip`=X'3417e7cf',`location`='/newreply.php?tid=267&replyto=883',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0