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 ('057a914a97cc312e7d5ee59ca7eecf84', -1, 1714621932, 1714621932, '039183ee', -4, 0, 0)

Line : 187
File : sessions.php