phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './themedat_phpbb/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 ('e4db8951d0d85891bfd6fb398a6d4bfc', -1, 1542468859, 1542468859, '36a316d1', -4, 0, 0)

Line : 189
File : sessions.php