I just added the AddToAny links on my blog but could see that it gave a parsing error when I tried to use the Google +1 button.
Having looked at the code it’s easy to see the error, in line 371 the code says this:
'https://plusone.google.com/u/0/_/%2B1/button#url=' . $linkurl_enc . '&size=medium&count='
Whereas the ampersands should be encoded as & (as they are in all the other services), just change the line to read this and all is well.
'https://plusone.google.com/u/0/_/%2B1/button#url=' . $linkurl_enc . '&size=medium&count='
Update – I entered the bug onto the forum and the developer responded within a few hours saying it will be fixed for the next release. It’s nice when a developer is so responsive.
Here’s the forum thread.