phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './tripleac_Forum/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 ('46c2a3512cc71b0dc055618f5a8ab006', -1, 1461916928, 1461916928, '36f291f4', -1, 0, 0)

Line : 187
File : sessions.php