phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './amcqfmxp_phpbb1/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 ('fd4cb6c5ecb831d1c395a53b4ceb7bd8', -1, 1436321506, 1436321506, '36505e5c', 1, 0, 0)

Line : 187
File : sessions.php