RMarkdown from server file

Question

I am transferring code from my computer to a server and there is a problem with the reference to the markdown file.

First, this code works:

> blastula::render_email('C:/Users/Me/Desktop/markdown_code.Rmd')

But when the Rmd file is in the server, there is an error:

> blastula::render_email('//server01/Data/markdown_code.Rmd')
pandoc.exe: markdown_code.knit.md: openBinaryFile: does not exist (No such file or directory)
Error: pandoc document conversion failed with error 1

I found out that it has something to do with the server address. When I try to knit the markdown itself manually in RStudio, I get this error:

Warning messages:
1: In normalizePath(path.expand(path), winslash, mustWork) :
  path[1]="\\server01": The specified path is invalid
2: In normalizePath(path.expand(path), winslash, mustWork) :
  path[1]="\\server01/..": The specified path is invalid

The markdown itself is a very simple code:

title: title
output: blastula::blastula_email
---
Text
```{r print, echo=FALSE}
df
```                               #

Is there a special syntax for referencing the markdown file in the server or what could be the solution for this?