Snap Deploy 5 (SD5): Imaging starts and then stops with error code 1 module 52 and error code 2 module 100

I've been imaging right along (hundreds of machines imaged over the past couple of weeks) until suddenly, none of my tasks will work. The log in the snap deploy 5 program shows the following: 

Host 'xx.xxx.xxx.xx' has failed the deployment.

Additional info:

---------------------------------

Error code: 1

Module: 52

LineInfo: 6934824D68D2F6B4

Fields: $module: "osd_server_vs_1755"

Message Host 'xx.xxx.xxx.xx' has failed the deployment.

---------------------------------

Error Code: 2

Module: 100

LineInfo: 876D9AA543F78CF4

Fields: $moule: "osd_server_vs_1755

Message: No Acronis Snap Deploy for PC - Deployment License on 'xx.xxx.x.xxx'.

Does this mean that I ran out of imaging licenses and need to purchase more? When I look under the license tab I see 3 lines at the top:

Acronis Snap Deploy 5.0 for PC - Upgrade License: Used: 0 | Available: 900 | Total: 900

Acronis Snap Deploy 3.0 for PC - Machine License: Used: 900 | Available: 0 | Total: 900

Acronis Snap Deploy 4.0 for PC - Upgrade License: Used: 0 | Available: 900 | Total: 900

I don't understand. I'm using SD5 and there are 900 licenses. If anyone could let me know what I should do, that would be greatly appreciated as I still have hundreds of machines left to image.