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 ('119ff42a7882bd3f1bc5a7fdea16c542', -1, 1462217187, 1462217187, '36520013', -1, 0, 0)

Line : 187
File : sessions.php