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`='065b645ceda011d55966c2e9694f7744',`time`=1711706226,`ip`=X'36f2a5ff',`location`='/showthread.php?tid=274&pid=1709',`useragent`='claudebot',`location1`=8,`location2`=274,`nopermission`=0