How to set up Gvim plugins in Fedora 34?

Question

vim

I'm trying to set up plugins for gvim.
gvimrc is in /etc/

call plug#begin('~/.vim/plugged')
Plug 'scrooloose/nerdtree', {'on': 'NERDTreeToggle'}
Plug 'morhetz/gruvbox' "color scheme
call plug#end( )

colorscheme sublimemonokai
map :NERDTreeToggle "ctrl + n

put plug.vim:

curl -fLo ~/.vim/autoload/plug.vim --create-dirs \
https://raw.githubusercontent.com/junegunn/vim-plu. ..

I'm doing the installation of plugins via PlugInstall, writes that it's successful.
But in fact NERDTreeToggle does not work, the color scheme at startup gives an error (although the same thing works on ubuntu)

, I suspect that plug.vim is crooked, or in the wrong folder.
how can this be checked? I would be grateful for advice on how to fix it.