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 ('46c049cc91db3a603429e363932650ad', -1, 1713545727, 1713545727, '038a229e', -8, 0, 0)

Line : 187
File : sessions.php