If you haven’t tried the mod before, the stable version is not the best version.
It is stable when it is released, after any MSFS sim changes, it is never as stable.
The Custom FlybyWire seems to be the better of the mod versions.
Other mods can cause this affect with any of the A320mod versions
It is important to remove all other mods from your community folder when using it until you get to know which particular mod(s) cause issues.