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 ('95c1a5192944ca215a5f207a8c65f4ea', -1, 1413898148, 1413898148, '36a79004', 0, 0, 0)

Line : 187
File : sessions.php