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`='c66b3634e737230f77e4daf1523ae322',`time`=1711646459,`ip`=X'2cca80b1',`location`='/showthread.php?tid=270&pid=1690',`useragent`='claudebot',`location1`=8,`location2`=270,`nopermission`=0