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`='5be4025a05f134612057f000181b6b99',`time`=1711637747,`ip`=X'03ee4fa9',`location`='/showthread.php?tid=15&pid=4593',`useragent`='claudebot',`location1`=8,`location2`=15,`nopermission`=0