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 ('a054fa2752d7694e382b7930905374d2', -1, 1469730063, 1469730063, '369204fa', 14, 0, 0)

Line : 187
File : sessions.php