ThemeGrill Demo Importer doesn’t Import nothing

I tried to install demo content using your plugin demo importer for the Zakra theme and failed.
You wrote that for the demo import to work properly, I need to perform the following PHP settings

max_execution_time 360
256M memory limit
post_max_size 32M
upload_max_filesize 32M

I directly contact my host and ask it to increase the configuration of max_execution_time 120 to max_execution_time 360.

Now I have the following PHP settings:
max_execution_time 360
memory limit 512M
post_max_size 256M
upload_max_filesize 512M

But this not fixed the problem.

I have a fresh installation. Then I reseted the site using plugin WP Reset – Best WordPress Reset Plugin and tried import the demo again. But this not fixed the problem too. I leave my site URL here https://studiosgld.com/ so that you can check on detail.
Tell me please how to do it.

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