error message reportyed on FR2

[prcvlusr]

FR1 (no issue):
15:28:53,256 FR.App INFO - frameReceiver version 0.6.1 starting up
15:28:53,256 FR.Controller TRACE - FrameRecevierController constructor
15:28:53,258 FR.Controller INFO - No frame decoder loaded: type not specified
15:28:53,258 FR.Controller INFO - Shared frame buffer manager not configured as no frame decoder configured
15:28:53,258 FR.Controller INFO - RX thread not configured as frame decoder and/or buffer manager configured
15:28:53,259 FR.Controller INFO - Loading decoder plugin PercivalEmulatorFrameDecoder from /home/prcvlusr/percival/percival-detector/data/prefix/lib/libPercivalEmulatorFrameDecoder.so
15:28:53,260 FR.Controller INFO - Created PercivalEmulatorFrameDecoder frame decoder instance
15:28:53,260 FR.Controller TRACE - FrameReceiverController::run()

FR2:
15:28:53,430 FR.App INFO - frameReceiver version 0.6.1 starting up
15:28:53,431 FR.Controller TRACE - FrameRecevierController constructor
15:28:53,433 FR.Controller ERROR - Configuration error: Binding frame ready notification channel endpoint tcp://*:5001 failed: Address already in use
15:28:53,434 FR.Controller INFO - Loading decoder plugin PercivalEmulatorFrameDecoder from /home/prcvlusr/percival/percival-detector/data/prefix/lib/libPercivalEmulatorFrameDecoder.so
15:28:53,435 FR.Controller INFO - Created PercivalEmulatorFrameDecoder frame decoder instance
15:28:53,436 FR.Controller TRACE - FrameReceiverController::run()

that is puzzling, also because tcp://*:5001 has not to do with FR2
the images from FR2 are acquired correctly, though.