phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './messageboard/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 ('c41960ac67b82f07c72a06bdc25a75b4', -1, 1427732040, 1427732040, '36a3b50e', 1, 0, 0)

Line : 187
File : sessions.php