Microsoft Flight Simulator Aircraft Upload Troubleshooting

I've been trying to upload a Finnair A320neo aircraft and a Malév Boeing 737 into Microsoft Flight Simulator, but they aren't working despite being placed in the Community folder. I've already taken some basic troubleshooting steps such as rechecking the file structure, restarting the simulator, and updating the simulator and mods. I need a one-hour consultation with an expert who can help me fix this issue through a remote access session.