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 ('42e807540509328c88710daf6e2e01ca', -1, 1714724407, 1714724407, '038d1fd1', -4, 0)

Line : 158
File : sessions.php