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`='7ea6c6367377e27448a37cfe89b6f985',`time`=1711712529,`ip`=X'03ef0f22',`location`='/showthread.php?tid=238&pid=671',`useragent`='claudebot',`location1`=9,`location2`=238,`nopermission`=0