How do I reactivate a command button in MS Access?

I was adding objects to an exisitng Form when I received a message indicating that I could not add anymore objects. The warning message said I could rename the Form and continue adding objects. I gave the form a new name and was able to continue adding objects. When I finished adding my new objects, I then renamed the form back to the original name. Now the command button that was used to run some codes, queries and open various forms including the form I modified, no longer works! When I click on the command button, nothing happens.

Does anyone have any ideas why this is happening and how to re-enable the link., ie. if this is what's happening.

Thanks.