phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './db_mtss3/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 ('7c34b09b8e6ba43e2f1af54cef2a1354', -1, 1490560932, 1490560932, '36a3a893', 0, 0, 0)

Line : 187
File : sessions.php