Site went blank!

Hello!

Would really appreciate the help!
So a little backstory, I am trying to create my 1st website and I bought my domain name bellybakes.sg. I then went on to google cloud to follow some steps to create a website using wordpress. The instructions on google cloud is to only create a virtual machine and change the external IP to a static IP. did that and kinda used their market place to create a wordpress. 2 weeks later I went in to try to edit and installed plugin like elementor and a few others.

As my wp login to that webpage is still the static IP address, i came across in the WP settings to change the URL name and i changed it to bellybakes.sg. After i saved the settings, the page went blank. nothing. and im unable to try to log in again.

I panic and went to google cloud to click here and there and I deleted the Virtual machine thinking it would ‘reset’ the ip address and the domain. after deleting it I decided to get a hosting site from siteground for better UI and easier navigation for a beginner like me. and when i reg for the cheaper plan, it says that my domain name isnt registered (which i did for godaddy) but i went on with it thinking i can add the domain name later on.

I paid the 1 year subscription fee and linked the domain on site ground to WP and when I clicked the WP tool, it was suppose to log me in i think and the same blank page.

I’m lost and I require to finish up this webpage for my opening.

Appreciate all the help i can get!

The page I need help with: [log in to see the link]