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 ('f10dc38af9a3c890ce0f5b4f3ec32044', -1, 1713505398, 1713505398, '038b484e', -8, 0, 0)

Line : 187
File : sessions.php