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 ('71a36f9e63ef1cd3e7f77d6737a89d16', -1, 1715017713, 1715017713, '12de7885', 7, 0, 0)

Line : 189
File : sessions.php