phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO blitz_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c2b256cc506f55ab352fc3ef46d011ce', -1, 1713977196, 1713977196, '0aa8c802', 1, 0, 0)

Line : 200
File : sessions.php