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, session_admin) VALUES ('54d95174b39a98a9361a9b7c11b11eb3', -1, 1713566325, 1713566325, '030f064d', -9, 0, 0)

Line : 187
File : sessions.php