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`='2275e43e3c54a33762cbfce7fa14fc18',`time`=1711625909,`ip`=X'23adb23c',`location`='/showthread.php?tid=368',`useragent`='claudebot',`location1`=19,`location2`=368,`nopermission`=0