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`='acc0b6c3a04b346ba8363621ea7029b4',`time`=1711669709,`ip`=X'2cc0f7b9',`location`='/newreply.php?tid=307&replyto=1876',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0