First of all, I have checked your code and there is a javascript error. That is because you load the map script but you don’t use it. If you don’t want to use it, remove the code where the library is loaded. It’s the line 265:
I have checked you code and I have found the solution for the subscription form. It’s needed to add a class in the code.
In the line 195, you have to replace the current code from this: