Changes in preview but not on main

I have a site that i was testing. but there seems to be no edits on the actual site,, but there are changes in the preview, https://64e0402663d4a4000897f958– I did find an error when deploying(image attached). I apologise if there is something with the code and not netlify cause this was a test to chatgpt a whole app. This is the repo:
I could not send to many screenshots so here is a link of the screenshots:

You’ve locked publishing:


Your current published deploy is this old one: Deploy details | Deploys | fitplanpro | Netlify

So after i unlock it it should work yes?

Newer deploys would automatically published, yes.