I saw a delightful lady from TysonGirls last year, and in trying to reengage I find their site is no longer... is there a replacement that may lead to fun in the Tysons area?
  Appreciate the pointers, DH

Did you try contacting them in the same way you did last year (email, text, etc)?

If you don't have their info you've been blocked/ banned.

Don’t think they exist any more

I’d suggest contacting them via the same method you booked before.  

You can also do the work and find the profile of one of the independents that works with them. The profile should have the contact information.  

There were issues with people sharing the MEMBERS’ site and trying to book without being properly vetted, and these individuals being offensive to the bookers. That’s why the old site is no longer up.