phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './lg15_phpbb/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a0c77d00f7c36a24bc7a0bfea98dc114', -1, 1766084768, 1766084768, 'd849d8a8', -9, 0, 0)

Line : 187
File : sessions.php