To whom concern,
it looks like several things can cause this problem, it can be an easy thing or hard one. Once I receive the code I will perform several test in order to find what can cause the error. I'm confident that if the site is working on the desktop we are talking about vue.js manifest problems, so if we are able to detect the mistake we could be able to fix the problem soon.
Also if it is an easy problem I could be able to perform a report to see and analyze the performance of the site and give you a list of features to develop.
Sincerely,
M.