Question Problems with update 5.x

Problem icon category
I do not even charge your category icons, I checked the path to the folder icons there and slowly but on the forum do not see why?

I got tired, I'm having trouble on the whole template, category icons are not seen, the description of the subjects you do not see icons, and still do not know what I will find other problems,

P.S
Take a step back and puts the CSS separate from the CSS site template, you can not constrain the style of the site to the forum.
Thank you

I got tired, I'm having trouble on the whole template, category icons are not seen

Please check in Backend -> Kunena -> Templates -> Crypsis -> Basic Settings -> Default category icon, what is entered in this field. Default should be: icon-folder
Possible are also glyphicon-folder-open or fa-folder
If it still doesn't work select additional in Crypsis -> Features -> Load External CDN Fontawesome = Yes

Take a step back and puts the CSS separate from the CSS site template, you can not constrain the style of the site to the forum.

What do you mean?

With the previous version of the forum, CSS were not bound to the Site CSS templates, now with the new version 5.x of the forum does not have its own CSS and binds to the site template CSS.

I have many problems that I had before, I do not speak English translate goole and difficult to make me understand.

P.S
I did as you said but the icons do not even charge.

You have entered the word "Default" in the field. This is wrong!
Enter at "Icona predefinita della categoria = icon-folder" (see image)

I wanted to install the template, Joomla always tells me the same error, but the file is present in the package.

template.xml missing files in the archive of the template, you can not continue the installation