OFFICIAL UPDATE:
Thank you everyone for your patience this past week. Here are the step-by-step directions for updating the BitBay Markets Client and getting on the correct chain.

*** Please note: This is a mandatory update for all users. ***

You must use the combination of new wallet and bootstrap versions to be sure to get on the correct chain.

Here is the guide to completing the update for the BitBay Markets Client:
https://forum.bitbay.market/t/how-to-fix-the-chain-split-issue-on-market-client-mandatory-for-all-users/2318

Please follow each step carefully!
If you have any questions or need technical support, please let the team know in the Discord #support channel here:
https://discordapp.com/invite/jRkjCxf (edited)

Those of you that use Qt wallet please refer to the instructions we have previously posted:
https://forum.bitbay.market/t/how-to-fix-the-chain-split-issue-on-qt-wallet-mandatory-for-all-users/2317