Many thanks Oliver for the explanation.
You are right I had a file there that was not part of the original. I have tested many things...
I will try to make a second ILS in Runway 36. I hope the way I do it is the correct one with the airport design editor and then find the scenery file of GCLA. I added the ILS and compiled it and finally replaced in the folder shown below:
Hmm..there seems to be some underlying pathing issue there on your system somewhere. That is why MSFS is not seeing the exe.xml. Just to reconfirm: you took the same exe.xml that you have also attached here in your first post and copied that into "C:/Users/Jokel/AppData/Roaming/Microsoft Flight Simulator", correct? Can you make a screenshot of that same folder and also attach it here, so I can see what else is in there.