Moving forward. I can see that RR finds the plugin and the plugin finds the .ini file :thumb:
The error message tells you have a conflict on your comport.
Pls do this:
1) make sure it look like this in the IbusCommunicatoRR ini file
[SPECIAL]; COM port number, Valid range 1 to 16 (Required)
2) check in RRConfig go to GPS-> GPS Port, what number do you have?
3) You talk about IbusRR earlier, guess you don't use it any longer?
4) Can you check ibusRR ini file what comport number you used there?
5) Do you use any other program that using comport?