Getting error when open file in vim

Webmin
1

Error message is below:
client coc abnormal exit with: 1

2

vim, not sure what that has to do with Webmin.
that error has someting to do with this

3

When I open file on vim using sudo command I get thee error. The document you provided is not working

4

As mentioned, this has nothing to do with Webmin.

Try this: