Template Crashed While editing blog post featured image

Hi All,

I just purchased Inclusion template a few days ago and I was uploading the content to my homepage. Everything was going perfectly but unfortunately when I edited the blog post my featured image didn’t showed up correctly. I tried to make changes in grids and widths. Everything got crashed. It was a copy of my template but how can I reset these changes ? I just made changes to blog and everything got messed up. Can anyone help me out in resetting it ?

Or do I have to upload all the content once again ?

And why it says I cannot duplicate my template. I have to upgrade my workspace ? How can I upgrade my workspace ? DO I have to pay for that ?

If anyone can help, I would be grateful.