Issue on challenges after lesson

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Avatar of fortunatodimarco
On the challenge 2/5 after lesson on the black defences after e4 there is an issue!!! No moves are ok no hints and if you ask for solution the game crashes……what to do????
Avatar of justbefair
fortunatodimarco wrote:
On the challenge 2/5 after lesson on the black defences after e4 there is an issue!!! No moves are ok no hints and if you ask for solution the game crashes……what to do????

Link?