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`='9a3fb178d17512c6cfe27d4c5a4f5418',`time`=1711696499,`ip`=X'36f2bfd6',`location`='/newreply.php?tid=244&replyto=676',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0