Hi,
I had the same problem as well. I recently bought the A350 and it crashed every time I flew.
I was able to solve that issue by deleting the aircraft and all its liveries in my community folder. I also deleted the aircraft´s folder in the WASM-folder of the Flight-Simulator.
After that, I reinstalled it and now everything runs perfectly fine.
There´s an tutorial on how to do it by Easyjetsimpilot: