Unkown function: SemshiBufWipeout when closing windows in python3.8

[66RING]

When I close windows, for example, after updating plugins using PlugUpdate command provided by vim-plug, I saw the following errors:

Error detected while processing BufWipeout Autocommands for "*":
E117: Unknown function: SemshiBufWipeout
E117: Unknown function: SemshiBufWipeout
E117: Unknown function: SemshiBufWipeout

This is my vimrc

Plug 'numirias/semshi', { 'do': ':UpdateRemotePlugins', 'for' :['python', 'vim-plug'] }

I try to use :UpdateRemotePlugins manually ,but did not work

[66RING]

I fix it in the following to step:
1.upgrade pip in python 3.8(recently release)
2.delete HOME/.local/share/nvim/rplugin.vim and :UpdateRemotePlugins again

[SkyLeach]

To anyone else having this problem: most of the time the short way out is simply to do :UpdateRemotePlugins