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 ('227377eb1227e7f1f9b2f6b7badba3fd', -1, 1714027863, 1714027863, '038d1886', 0, 0, 0)

Line : 187
File : sessions.php