Hi there,

1. Sorry, but we don’t quite understand what CSS do you mean. Could you please provide us more information about this and send some screenshots?

1.1 I had to add this option – because after the update this box was broken.
http://joxi.net/12MP7zViwoNzwm
1.2 In the old version, you had them as your option

1.3 In this regard, are all the options available here, how to determine which option(CSS) I will use, how to make sure that nothing else has broken!
http://joxi.net/DrlZ7gETG8B7L2

2. You can enable Combine CSS files in Theme Settings -> Performance -> CSS.

2.2 Will this result in the old load option?

How do you combine them – one common file for the whole site or one product file.. one for the site, for posts, etc.?

3. Just ignore those options. They will not affect anything if the Elementor plugin is not installed.

3.1 Okay, I’ll ignore them, but doesn’t that mean these options, files, are loaded every time the site loads? My question is about the speed of the site.

4. You need to enable this option in the mobile menu element with the Header builder http://prntscr.com/12m1o5o

4.1 In this case, this is set but the text is not displayed.
This is a pre-production site, so I can test if there is a problem to remove it before updating the original site.
http://joxi.net/12MP7zViwoNjBm

5. Could you please send us a link where we can see this error?

5.1 https://snipboard.io/Y6yslu.jpg

Main page – mobile version, all pages. For example:
https://preprod.s-deal.eu/
https://preprod.s-deal.eu/shop/

6. We don’t see this problem on your website https://gyazo.com/10e5e51e8536c7e4e6d28d01f134d7a4
Could you please clarify the issue?

6.1 Example:
https://snipboard.io/hQ5UiX.jpg
https://snipboard.io/ZDIfW9.jpg
https://snipboard.io/m7sRWC.jpg

Kind Regards