Run Command not working on Alteryx Gallery

[Paulomi]

Hi,

I have a simple problem. I am trying to create a folder on a shared drive using a run command on Alteryx Gallery. The command I have is: 

mkdir "\\[FolderPath]\ABC" where ABC is the name of the new folder. 

It seems to work perfectly on Designer, but fails on Gallery, with an error code 1. 

This is a new problem; I have been running the same thing on Gallery for months now, but suddenly, it is throwing out an error now. 

Any help would be much appreciated!