Foldergallery 3.0.14 Call to a member function fetchRow() on null in line (131)

[svsanchez]

Thank you dbs, uninstalling and reinstalling the module solved it 

[dbs]

Hi, this means your database query deliver bo result.
If you can deinstall/remove the Foldergallery and install 3.0.16 new

[svsanchez]

Hello!

After upgrading a site from WB 2.8.3 with FolderGallery 1.38 to WB 2.12.2 with FolderGallery 3.0.14, I am getting the following error:

There was an uncatched exception
Call to a member function fetchRow() on null
in line (131) of (/modules/foldergallery/view.php):

This is what I have on line 131 of view.php: $imageData = $query->fetchRow(MYSQLI_ASSOC);

Can someone please help me troubleshoot this.

Here's the URL to the page with the error: http://centrobionico.com/pages/productos.php

Thank you!