Error when installing the shipping surcharge module

[Semi-Crazy]

Able to provide the code that is at line 115 and before to a point where you see something like:
function
public function
protected function
static function

Or any thing like the above?

The error message suggests that a variable or class method is being used that hasn't been set or shared in the current code space.

Should be an easy fix. Also may help to post the location where this code is available. Suggest including the version number installed to your system and php version.

Downloaded the plug-in from here. https://www.zen-cart.com/downloads.php?do=file&id=2308. Written by "That Software Guy".

Thanks for all your help!

[swguy]

Pull the latest version - it has the fix you wanted.

[Semi-Crazy]

Thanks to Everyone for the input. The changes swguy made did the trick!