phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './tattooty_tatforums/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 ('7de03bf8e6afe057ce2aef455bbd7c87', -1, 1398262797, 1398262797, '36d38ab4', 8, 0, 0)

Line : 187
File : sessions.php