I have the same error on 2 different machines (both Kubuntu 18.04 64 bit, MCUXPresso 10.3.1 and SDK for LPC845 Version 2.5.0:
I abort debugging by clicking the red symbol in the upper menu. Then (doing some other things or even not) I click "Debug" in the Quickstart Panel. Then these windows appear on each other (the right one on top):
The window in the middle has these "Details":
Then I have to click "Escape" a few times until all windows have disappeared. Then I can click "Debug" again and it works. Every time.