Issues when trying to load/re-enable Bidscreen XL to Excel

When try to add the program to Excel, or re-enabling the program in Excel, I get the following error:

How do I fix the problem?

This error occurs because the add-in has been disabled. To fix the problem:

• Click on File tab
• Select Options
• Select Add-ins
• At the bottom where is says Manage Excel Add-ins, click the down arrow and select Disabled Items
• A box will display and the program should be on the list. Select the program and click Enable.
• Close Excel and reopen and re-add the program into Excel or recheck it on the Add-ins list.