RAD lightweight flywheel fault

I'm a little heartbroken. Have a rad lightweight on my ski and I was super happy with the improvements it made.
However having some issues with the ski and 1 of the problems is the outer gearing is slipping round on the flywheel now other than the it's fine. Is there any way I can fix this or get it fixed!???
Thanks in advance
 
I usually have to replace hubs because they all crack, but I can also pin the gear
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