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`='882750e74b132a1926d214f294779984',`time`=1711654044,`ip`=X'2ccab776',`location`='/showthread.php?mode=threaded&tid=291&pid=2697',`useragent`='claudebot',`location1`=8,`location2`=291,`nopermission`=0