Your project version and your RPG Maker version are completely independent. Open your rpg_core.js file and see what version number it says at the top. If it doesn't have a version number on the first few lines, it means you have 1.0.0
When you get an error message, please open the developer tools (F8) and go to the Console tab and get a screenshot of that. It provides much more information than what's in your screenshots.
And you didn't find out how to make the hud maker work again. You only found out how to stop it notifying you that you had an earlier version than it requires. You STILL have an earlier version than it requires, which is why when you removed the check, it still crashed. You need to do what the message tells you to do and upgrade your project. The instructions are in every single update thread that's been posted. I suggest if you don't know what you're doing, you don't edit scripts. You should put that back the way it was.