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 ('480a85474530cabe586e8365f933e840', -1, 1713519115, 1713519115, '030f039a', -7, 0, 0)

Line : 187
File : sessions.php