This still seems to be a hot topic.
I have followed many discussion-threads here on the twitter developer site. Some mentioned it could be due to ‘strange’ characters in your name or bio.
Just to check what would happen I have also changed my bio. So that didn’t work for me.
-And I would say my name doesn’t have strange characters, so I don’t think that’s the problem.
I have tried all browsers here, Safari, Chrome and Firefox : all gave me the “Internal error when processing the whitelist request”.
-Any ideas how I can resolve this?