Fix exception when device can not be accessed (caused by logging)

main.py

@@ -64,7 +64,7 @@ def __init__(self, device, deviceid):
             self.log.debug("Attempting to open midi port `%s`" % self._devicename)
             self._port = mido.open_input(name=self._devicename, callback=self.callback)
         except:
-            self.log.critical("\nCould not open", self._devicename)
+            self.log.critical("\nCould not open device `%s`" % self._devicename)
             self.log.critical("The midi device might be used by another application/not plugged in/have a different name.")
             self.log.critical("Please close the device in the other application/plug it in/select the rename option in the device management menu and restart this script.\n")
             # EIO 5 (Input/output error)