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 ('8e3e963300f4f5d9b995f6ce05ead271', -1, 1730421396, 1730421396, '0390f87a', -1280, 0, 0)

Line : 195
File : sessions.php