New version installation issues

Updated to new version cause it wouldn’t stop asking me every time I logged in, even though I had reservations, and basically lost all my indicators, what a surprise, even though on the install instructions it CLEARLY SAYS: " * Updating will not affect your saved Workspaces, Templates, or any third-party add-ons"

Anyway, need to know how to either delete everything and start over or fix this POS yet again. Here is the error I am getting.

You have custom NinjaScript files on your PC that have programming errors. These errors must be resolved before you can import a Ninjascript Archive File.

So the update killed all my imported indicators and everything else I had installed, now i can’t reinstall them either, and I even tried uninstalling and reinstalling ninjatrader platform.

I am not a tech or support (they don’t do that here any more)… but, I had to login to my NT account and download the previous version and install that. I was told its a good idea to make a Copy of your Ninjatrader folder and paste it somewhere else for safe keeping before you do anything. Have you had a look at NinjaTrader 8/bin/custom/indicators to see if your old indicators are still there? That’s all I can think of at the moment.