Can't delete bad posts

Sometimes when I upload a link it doesn't load properly, it happens no big deal, but then I can't delete these buggy posts and then I end up unintentionally spamming a bunch of duplicates as I try to post again

Here is an example of one of these attempts
https://kbin.social/m/my_mouldy_memes/t/445093/Title

The error I get when trying to delete is

We are working on resolving the issues
Over the next few days, there will be a change in server infrastructure. Temporary problems with the website's functionality may occur during this time.

Any suggestions?