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 ('b71b68f1a1b521ccb0c5469afc7716ca', -1, 1714646348, 1714646348, '038a76fa', -4, 0)

Line : 158
File : sessions.php