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 ('4a1100ab1327b75b3f908ef32ad9608f', -1, 1713485014, 1713485014, '03934835', -4, 0, 0)

Line : 187
File : sessions.php