phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './assoc_phpbbv2/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 ('6507f790d5dcf3f93bfeee2fd1e8a530', -1, 1397761034, 1397761034, '6ca2d456', -4, 0, 0)

Line : 187
File : sessions.php