phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './mailarti_mail/sessions' is marked as crashed and should be repaired

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('15786cf5ddf1e51b1adc05452843de0c', -1, 1461931250, 1461931250, '3693be84', 8, 0, 0)

Line : 187
File : sessions.php