WinError 10053 while debugging

I'm getting:

C:\ProgramData\Anaconda3\python.exe "C:\Program Files\JetBrains\PyCharm Community Edition 2017.3.3\helpers\pydev\pydevd.py" --multiproc --qt-support=auto --client 127.0.0.1 --port 57328 --file C:/ABC/DEF/IBridgePy/RUN_ME.py
pydev debugger: process 13324 is connecting

Connected to pydev debugger (build 173.4301.16)
Backend Qt5Agg is interactive backend. Turning interactive mode on.
Traceback (most recent call last):
File "C:\Program Files\JetBrains\PyCharm Community Edition 2017.3.3\helpers\pydev\_pydevd_bundle\pydevd_comm.py", line 365, in _on_run
r = self.sock.recv(1024)
ConnectionAbortedError: [WinError 10053] An established connection was aborted by the software in your host machine

Process finished with exit code 1

--What's this about?

--Thank you