Since you have search and unable to find your PO and also no email communication, most likely the order is not loaded. Btw, I have also did a search but unable to find PO (screenshot below). Let wait for LTG team who I have cc in this email to confirm and if confirm PO not found, please reload again.
Cc: LTG team, please advise if you can locate this PO in the LTG system)