WordPress File Manager Error: Invalid backend configuration. Readable volumes not available.

Hello,

I recently installed WordPress on WinHost Basic account.

Install works great, but when adding a file manager plugin, named File Manager Advanced, I keep getting this error:

ERROR:
Invalid backend configuration.
Readable volumes not available.​

I'm pretty sure it has something to do with permission of the plugin to view and CRUD files.

There really aren't too many things to change in the plug-in.

WinHost says my path to root is E:\web\mywebsite\

So, I set the plugin's Public Root Path to E:\web\mywebsite\

That did not help.

Any idea what else might be wrong?

Thanks, Jason

NOTE: I'm using a FREE version of Advanced File Manager, there's $9 Pro version that might help.

 

PROGRESS:

Based on this https://github.com/barryvdh/laravel-elfinder/issues/17

I figured out that the file manager's Public Root Folder is relative to WordPress' root folder.

Thus, I set Public Root Folder = .. and I can now SEE file list, however, I can't access any files or navigate through folders.

ERROR:
Unable to open "image"..
Folder not found.​

I also tried setting Public Root Folder = ../ and I get the same behavior. That is, I can see root folder list of files and folders, but can't access any of them.

Must be another setting...

 

SOLVED:

I changed the Public Root Folder = ../wp-content/

Now I can edit files and traverse folders in this tree.