my website does not work

[n3duxrh]

I'm not a computer scientist, and my website stopped working. It is developed on opencart pro, with php 7.4.33 and runs on apache, but when you load it it doesn't show anything, it shows blank. I am looking for someone who can make a diagnosis and explain to me what happens and how much it costs to fix it. Thanks in advance

[BuslikDrev]

Что означает пусто? Белый экран?
https://liveopencart.ru/tips/vkljucheni ... -opencart/