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UNINSTALLATION VIA OPEN IV PACKAGE INSTALLER:
(will make it as simple as possible)

Open OpenIV, go to the "tools" tab, click on "Package Installer". 
Double click the OIV file "UEFA (UNINSTALL)" and then click "install" and "install into mods folder". 
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IF CRASH OCCURS AFTER INSTALL, REMEMBER TO REVERT PACK TO THIS FILE IN DOWNLOAD TO FIND AN ANSWER: 
Go to "STEP 1 Read all of these text files" (folder) and then read "2. Gameconfig credit_info and assistance.txt"  (help and insight located at bottom of text file)