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`='cf4ab2069f948e91f0a395755f6d3460',`time`=1711706776,`ip`=X'2cc85f9d',`location`='/showthread.php?tid=259&pid=2124&mode=threaded',`useragent`='claudebot',`location1`=8,`location2`=259,`nopermission`=0