How do I get my 50 week streak back

My guess is that there is no way to get your streak back, you'll just have to build a new one.

If you don't get any useful suggestions or perspectives here, you can use the 'Report a problem' link in the upper right to submit a support request to KA staff.  (KA staff only respond once in a while to posts in the Support Community.)

~ Janice (a KA user)