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`='4468e8e9ceb76f9f420e6b0b764e736c',`time`=1711642574,`ip`=X'12e8bc7a',`location`='/showthread.php?tid=263&pid=503',`useragent`='claudebot',`location1`=8,`location2`=263,`nopermission`=0