My list and re-usable workflow were working fine since many months. By mistake, I deleted my main workflow along with its instances from list. Now, I am trying to add this workflow in list by Workflow Settings -> Add workflow. However, I am getting error as Sorry something went wrong...Technical Details....Go back to site.

I have undo Check out my workflow from Designer by All Files -> Nintex Workflow folder -> right click on MyWorkflow and Undo Checkout. But still, its the same error.

Thanks in advance.

Chintan