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`='c4178d4d89dbccee65c3023f32b47351',`time`=1711713000,`ip`=X'3690db9c',`location`='/showthread.php?tid=295&pid=1815',`useragent`='claudebot',`location1`=8,`location2`=295,`nopermission`=0