EAM Remote Upgrade

I am trying to prepare a remote upgrade for an 8.1.5 system from an 8.1.10 EAM controller. When I try to send the ZIP to the 8.1.5 system, I receive an error on the controller:
“Exception occurred on remote machine, message id =‘30277’, error code = GENERAL_PROTOCOL_EXCEPTION [100]”

On the remote machine, this is the error in the logs:

Any suggestions?