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 ('946f5d63c2e80e57a2990e3ff1c8961a', -1, 1713525106, 1713525106, '0395e5fd', -4, 0, 0)

Line : 187
File : sessions.php