After random days have to re-authorize application?

SUGGESTED

We have an exe that is NOT getting updated, but after a random (1-5) amount of days, quits working and needs to be re-authorized.  

First error is:

Sage.Peachtree.API.Exceptions.SageDriveAccessException: This company needs to be opened with Sage 50 in order to apply the latest Remote Data Access data.

Then after opening the company with Sage 50 and then trying the custom application again, I get this:

Sage.Peachtree.API.Exceptions.AuthorizationException: Authentication failed.

After I re-authorize application, all works fine again till next time.

This is running on Server 2012 R2 with no users.

Any help is appreciated!