Error 404 with new posts after update

I am using latest version for Ghost 4+
Error caused says 404 for every page generated. This never happened before. I seem to be clueless about this. Posts appear in Featured posts normally, but they seem to open with error 404 with a cryptic link.
Whenever I click on those particular posts, some stripe link also generates which I didn’t understand.

Need help!

What do you have configured in routes.yaml?

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I haven’t touched my routes file ever since I created it with my custom requirements. Everything was working fine until I updated it last week with new security update. I uploaded the very fast route(default) file and now everything is working fine but I want my custom route file to work as it worked before.
Something broke with already working route file and I’m totally unsure what’s wrong. I’ll post my route for reference.