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 ('eadefe34f25f34f3e60925bf84bc9d82', -1, 1730420409, 1730420409, '0d3b72e4', 8, 0, 0)

Line : 195
File : sessions.php