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`='799a5db3b75739c259cec9fd5be580d8',`time`=1711712836,`ip`=X'345aeb5b',`location`='/showthread.php?tid=254&page=2',`useragent`='claudebot',`location1`=8,`location2`=254,`nopermission`=0