Cannot get PayPal donation, Sandbox thing to Work

[tmcom]

Created my account, (as far as l can tell since it says the secret thing is active, but not much else) and inputed it into my envision site, but it keeps saying that it cannot verify it.

The Client ID and Secret should be fine, since they are a cut and paste, but the Name?

Which name, the name of the account or the sandbox account, (which is a worry sine it says example in the url)?

But either way l have tried both, and the same error occurs.

Currently tried it in another bwoser but same error, impossible to tell if it is active, and it never works on my forum.

I would really appreciate some help from others who figured this out, thanks.