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) VALUES ('12a8295ac520ec958c8f8ea2e09ce7da', -1, 1714040653, 1714040653, '0389a4f1', -4, 0)

Line : 158
File : sessions.php