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 ('15798010745cdac5066ee68aa2606384', -1, 1715025104, 1715025104, '030fbe90', 4, 0, 0)

Line : 189
File : sessions.php