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 ('87919ad2b9db0d7c642a0de77abe1ea9', -1, 1542466778, 1542466778, '36a316d1', -9, 0, 0)

Line : 189
File : sessions.php