Gimgunlock , unlock every map usually ,except ,obviously encrypted ones (must decrypt them first, if it's possible) and a couple of them like Bashkortostan Route and PL Topo.
Which map had FID 4550?
If map is unlocked with gimgunlock you must remove previous version .unl and .gma.

Edit : Got it :is Topo Premium - 5 Hardangervidda FID 4550
Np to unlock it with gimgunlock
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