problem about "script cannot be loading on mobile web"

Hello,script cannot be loading on mobile web so as some contents display abnormally. How to solve this problem? Thank you.
For example, I use MathJax write formulas. The mobile web shows as the picture below:

Hello there,

I hope you are doing well today.

I cannot read that language to understand what the issue is here.
When did this issue start happening?

Best Regards,