phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('1404d3d359b8b0435a56e46f1b5fbe29', -1, 1714356407, 1714356407, '0390549b', 7, 0)

Line : 158
File : sessions.php