phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('12b8eb3af4bdc1d44c4e32aa517eb3c3', -1, 1715198966, 1715198966, '03908c97', 2, 0, 0)

Line : 189
File : sessions.php