I need some help friends! Many of you are much more knowledgeable than I!

Last night we chatted with our waiter about Bitcoin and it turned out he has dabbled in it. I asked if I could tip in Bitcoin and he was very excited about the idea. He had the Coinbase app and generated an address to receive. But when I try to send to it, I get strange error messages like “Invoice asset does not match.”

What is wrong here? It appears to be a valid address, but there must be some gap in my knowledge. Can you help me figure this out?

The address is 32qqz87XpVwacqrWYScgXPtyvpyAeRaRLgS

Thanks!