Avecto Privilege Guard is incompatible with the "extra anti-debug" option of the Shell Method.

When your protected program terminates then Privilege Guard causes a process called DPMon32_v3.exe (or similar) to crash. This process is launched by your protected program if you protected it with the Shell Method and specified the extra anti-debug option.

If you can specify DPMon32_v3.exe as an exception in Privilege Guard then please do that. Otherwise you can protect your program again but disabling the extra anti-debug option.