plugin stopped working

Replies: 0

The plugin worked fine when first setting it up.

We set up one button and it works fine.

Now, when trying to create further buttons it fails and doesn’t show the:
PayPal Email Address or Merchant Account ID :

We can create a button but the button doesn’t work because it doesn’t show this:
PayPal Email Address or Merchant Account ID :

Please advise

MHGC