can't use together with DoxygenToolkit.vim

[GopherJ]

strange behavior observed when use it with DoxygenToolkit.vim

it crashs or block there, or error message.

If I comment DoxygenToolkit.vim everything is fine

any idea?

[GopherJ]

vimrc

set nu
set nocompatible

set autochdir

set number
set relativenumber

set ruler
set showcmd
set showmode

set tabstop=4
set shiftwidth=4
set expandtab
set smarttab
set softtabstop=4

set nowrap
set nobackup
set noswapfile

set autoindent
set smartindent

set autoread
set so=7
set wildmenu

set magic

set lazyredraw

set noerrorbells
set novisualbell
set t_vb=
set tm=500

set viminfo=

set confirm

set ignorecase
set incsearch

set backspace=indent,eol,start
set formatoptions=tcqro

let g:solarized_termcolors=256
syntax enable
set background=dark
colorscheme solarized

nnoremap hs        <C-W>v
nnoremap vs        <C-W>s
nnoremap ss        <C-W>c

nnoremap <C-L>     <C-W>l
nnoremap <C-K>     <C-W>k
nnoremap <C-J>     <C-W>j
nnoremap <C-H>     <C-W>h

nnoremap <C-T>     :tabnew<CR>
nnoremap <C-W>     :tabc<CR>
nnoremap <C-Left>  :tabp<CR>
nnoremap <C-Right> :tabn<CR>

nnoremap <C-A>     ggVG$

nnoremap <F6>      :tabnew .<CR>

nnoremap c         "_c

nnoremap pw        viwp
nnoremap p{        vi{p
nnoremap p(        vi(p
nnoremap p'        vi'p
nnoremap p"        vi"p

set fdm=indent

call plug#begin()

Plug 'mattn/emmet-vim'
Plug 'tpope/vim-repeat'
Plug 'ervandew/supertab'
Plug 'majutsushi/tagbar'
Plug 'rust-lang/rust.vim'
Plug 'altercation/vim-colors-solarized'
Plug 'scrooloose/nerdtree'
Plug 'itchyny/lightline.vim'
Plug 'posva/vim-vue'
Plug 'leafgarland/typescript-vim'
Plug 'Valloric/YouCompleteMe'
"cd ~/.vim/plugged && python3 install.py --rust-completer --go-completer --ts-completer --clangd-completer
Plug 'racer-rust/vim-racer'
Plug 'jremmen/vim-ripgrep'
Plug 'editorconfig/editorconfig-vim'
Plug 'tpope/vim-fugitive'
" Plug 'vim-scripts/DoxygenToolkit.vim'
Plug 'Chiel92/vim-autoformat'
Plug 'mattn/webapi-vim'
Plug 'godlygeek/tabular'
Plug 'tpope/vim-commentary'
Plug 'tpope/vim-surround'
Plug 'mattn/gist-vim'
Plug 'terryma/vim-expand-region'
Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
Plug 'junegunn/fzf.vim'
Plug 'autozimu/LanguageClient-neovim', { 'branch': 'next', 'do': 'bash install.sh' }
Plug 'junegunn/goyo.vim'
Plug 'junegunn/limelight.vim'
Plug 'w0rp/ale'
Plug 'luochen1990/rainbow'

call plug#end()

"NERDTree
map <C-N> :NERDTreeToggle<CR>
autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif
autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif

"LightLine
set laststatus=2

"TagBar
"sudo apt install ctags
nnoremap <F8> :TagbarToggle<CR>
set tags=./tags,tags;$HOME

"DoxygenToolkit
" nnoremap <C-M>     :Dox<CR>

" let g:DoxygenToolkit_briefTag_funcName = "yes"

" let g:DoxygenToolkit_briefTag_pre = "@brief "
" let g:DoxygenToolkit_paramTag_pre = "@param "
" let g:DoxygenToolkit_returnTag = "@return "
" let g:DoxygenToolkit_throwTag_pre = "@throw "
" let g:DoxygenToolkit_fileTag = "@file "
" let g:DoxygenToolkit_dateTag = "@date "
" let g:DoxygenToolkit_authorTag = "@author "
" let g:DoxygenToolkit_versionTag = "@version "
" let g:DoxygenToolkit_blockTag = "@name "
" let g:DoxygenToolkit_classTag = "@class "
" let g:DoxygenToolkit_authorName = "Cheng JIANG <cheng.jiang@ubudu.com>"
" let g:doxygen_enhanced_color = 1

"Autoformat
nnoremap <F12>     :Autoformat<CR>
"au BufWrite * :Autoformat
" sudo apt-get install tidy
" sudo npm install -g typescript-formatter
" sudo npm install -g js-beautify
" sudo npm install -g xo
" sudo gem install sass

"rust-vim
let g:rust_clip_command = 'xclip -selection clipboard'

"vim-racer
" cargo +nightly install racer
set hidden
let g:racer_cmd = "~/.cargo/bin/racer"
let g:racer_experimental_completer = 1
let g:racer_experimental_completer = 1
au FileType rust nmap gd <Plug>(rust-def)
au FileType rust nmap gs <Plug>(rust-def-split)
au FileType rust nmap gx <Plug>(rust-def-vertical)
au FileType rust nmap <leader>gd <Plug>(rust-doc)

"editorconfig-vim
let g:EditorConfig_exec_path = '/usr/bin/editorconfig'

"rainbow
let g:rainbow_active = 1

"LSP
" rustup update
" rustup component add rls rust-analysis rust-src
let g:LanguageClient_serverCommands = { 'rust': ['~/.cargo/bin/rustup', 'run', 'nightly', 'rls'] }
nnoremap <silent> <F2> :call LanguageClient#textDocument_rename()<CR>
nnoremap <silent> K :call LanguageClient#textDocument_hover()<CR>
nnoremap <F5> :call LanguageClient_contextMenu()<CR>