Enable display of the Full description of the "news" or "catalogue"?

Question

1C-Bitrix

Greetings!

In general, there was this question: How to move the site to another folder with a different domain?

I fixed it to the level "All blocks are displayed" (well, or almost all), i.e. in the settings of each "Infoblock" I added a checkmark for a specific site + added a file with rights to the root of the site and added something like this:

<?
$PERM["video"]["*"]="R";
$PERM["personal"]["2"]="R";
$PERM["catalog"]["2"]="R";
$PERM["news"]["2"]="R";
$PERM["about"]["2"]="R";
$PERM["/"]["*"]="R";
?>

I don’t know how safe and correct it is, but the Menu began to work and most of the blocks began to be displayed as they should.

Now the difficulty arises:
1. First. From the front part, the page setup has ceased to be edited (in edit mode) (that is, you can’t click on the Gear and click save, it will write an error), it’s also not editable in the page file itself inside the Admin panel, you have to download the file, make adjustments and file the file back ... This is wildly inconvenient, in the sense that the content manager has lost the ability to independently edit the Page Settings.
2. And secondly. The detailed review does not work, let's say One news (or one product). I don’t know how to fix it and I don’t understand what could be the matter at all ... The following parameters are set in the Infoblock settings:

And in the page settings, these are:

The question is actually the following. Do not tell me why at the NEWS address - the articles are displayed in a list as they should, and when you click on this link:
https://market.lifeat.ru/news/Blablabla/
Gives 404.

Thanks in advance for any help, I've already rummaged through everything, everything seems to be done as it should, but it refuses to work!