Fluidd web ui runs on port 4408. If you enter ip and port 4408 in the OrcaSlicer2.3.0 connection configuration you will get the working device panel but Orca will not be able to send the sliced printout to the printer.
By the way, are you having problems with your printer using CrealityPrint v6.1? What slicer do you use?
I also encountered similar problems using OrcaSlicer v2.3.0