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`='fad035a76651492b6f0a79993132bc85',`time`=1711719830,`ip`=X'12d11f26',`location`='/showthread.php?tid=239&pid=1423',`useragent`='claudebot',`location1`=9,`location2`=239,`nopermission`=0