phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'phpbb_sessions.session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('73b99afc8468a17d1e31d5fa45a7bbf8', -1, 1768186515, 1768186515, 'd849d897', 10, 0, 0)

Line : 187
File : sessions.php