Hi,
Really sorry for the delayed response.
You are using script there in your raw HTML code: https://prnt.sc/BPmf3cpNQAxs
That script is not acceptable. I have tried to remove that portion then the save spinning issue not happens.
SP Page Builder is using this:
src="/keiko/media/vendor/jquery/js/jquery.min.js?3.6.3"
And you are using this in your HTML code: src="/https://code.jquery.com/jquery-3.6.0.min.js"
So it can be version conflict issue between 3.6.3 and 3.6.0.
I have a suggestion for you. If you try our Helix Ultimate Template then you will be able to easily create your Header, fotter with the help of the Template Options. Then no need of hard code the header, footer, and it should resolve the conflict issue with the contact form.
Here is the Helix Ultimate Template: https://www.joomshaper.com/joomla-templates/helixultimate
Quickstart installation process: https://www.joomshaper.com/blog/how-to-install-quickstart-package-in-joomla-4
Template pack installation process: https://www.joomshaper.com/blog/how-to-install-a-joomla-template
Documentation of Helix Ultimate: https://www.joomshaper.com/documentation/helix-framework/helix-ultimate-2/introduction
You can choose any predefined header style from the existing list: https://www.joomshaper.com/documentation/helix-framework/basic#header
Or you can create your own custom header: https://www.joomshaper.com/documentation/helix-framework/custom-header
Best Regards