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`='2d8854acc055a75f24462c47de6b2867',`time`=1711621355,`ip`=X'2cd76e8e',`location`='/showthread.php?tid=237&pid=1388',`useragent`='claudebot',`location1`=9,`location2`=237,`nopermission`=0