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`='ca877389844c68d06374b9c654414a15',`time`=1711707625,`ip`=X'36c69d0f',`location`='/showthread.php?tid=273&action=newpost',`useragent`='claudebot',`location1`=8,`location2`=273,`nopermission`=0