Payment on Hold, Need Help

[Roman2023]

Hi, I charged for advanced payment for web development services, and now my payment is on hold. I tried the process through this https://www.paypal.com/us/smarthelp/article/how-do-i-add-tracking-information-to-my-payment-or-updat...

but marking the order status as "shipped" or "order processed", I get the error that "That is an invalid transaction"

Thanks in advance for your help.