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`='f3394fe5ed334b633907486dece6a60a',`time`=1711703776,`ip`=X'23aa40b9',`location`='/showthread.php?mode=linear&tid=358&pid=2221',`useragent`='claudebot',`location1`=29,`location2`=358,`nopermission`=0