When Acronis encounters an error, receive email stating to click retry or cancel, but no dialog to click

I have Windows 8.1 Enterprise (All the latest updates as well) and Acronis True Image 2015, Build: 6525, and After I delete some backup files to free up some space, sometime Acronis cannot find the latest incremental and generates an error email, which I have no problem with. The issue is that in the emails (every ten minutes) I receive the following:

Adaptec Array V1.0 Task is waiting for user interaction.
Description: Stage Description
Information: The specified file does not exist.
Details: Click "Retry" to try to read from the same location. To create a new version according to the current backup scheme, click "Cancel".

I know I deleted some files, and all I would like to do is click on "Retry" or "Cancel", but I never see a dialog to be able to click??? Anywhere...

Also, when running True Image and looking for the "Cancel" or "Retry" buttons in that interface I find no such buttons and also the backup task only states "Calculating time remaining" whether or not I click stop or do nothing. Also, it never gets past Calculating. It is like it is waiting for the response to the dialog, but there is no dialog to click.

I also have Carbonite, but no other major background programs running. Am I doing something wrong here? I have never had a product notify about an error but never have a place to answer the notification.

If I remember correctly, I also had this issue in True Image 2014 as well, but I am not 100% certain.

Any help would be appreciated.

I have been using Windows Explorer to manually delete some backups when I need more space. I do not do this very often, maybe 2 to 4 times a year. Is there a better way to do this?