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`='e09cef16a3d934c4d312edf8ebd640f3',`time`=1711631142,`ip`=X'2cde74c7',`location`='/showthread.php?tid=614',`useragent`='claudebot',`location1`=19,`location2`=614,`nopermission`=0