We check this website, now thinktank-pr.de is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is thinktank-pr Down Right Now? - NO! thinktank-pr is up!
If you have problem with access to site thinktank-pr, and domain thinktank-pr.de is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).