phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './apfertil_phpb1/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 ('6f0fdbda7a1cce3c8e2e29719d173c49', -1, 1455210114, 1455210114, '321172e3', 1, 0, 0)

Line : 187
File : sessions.php