Dreamplanner Zephrys is banned, making my arena deck invalid

The title already says everything. Here is a short video (screen recording) about the problem:

Do I need to retire my deck now or what?

You can retire the deck and you should receive enough tickets to buy another run, plus the usual rewards for however many wins you had.

I had exactly the same issue, retired the deck, but didn’t receive any form of compensation..

Same problem mirai3999#2886 I had no compensation back