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 ('6d3c6726b1cc26acf4324ee42979c72e', -1, 1542466370, 1542466370, '36a316d1', 1, 0, 0)

Line : 189
File : sessions.php