phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './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 ('58c9080db068908f8d7c98850d600cfc', -1, 1427695015, 1427695015, '32107f22', -1, 0, 0)

Line : 187
File : sessions.php