Error code 12508 doesn't exist in the source code and its a high probably it's received from the CC terminal, but not properly processed by SERP. Please report the issue and development department will take a look at it.
I would like to know what BackgroundHALShouldPause does, and how to use it. While it's listed in the HAL Primitives report, it is not used in source code and it doesn't appear in the LMS HAL...