It is often possible to access this page when there is no beta running. When Bullroarer isn't on your copy will fail. It is wise not to copy your character until you are ready to use it. It may not be in the state you want. Failed copy resets are not always common.
On the bright side, it looks like it may be possible to copy creeps this beta. Monster players may enjoy that.
Crell-L85-Champion - Riddermark ; Swego-L85-Burglar ; Kotvi-L95-Runekeeper
Delego-L85 Hunter ; Stodden-L51-Captain ; Edhul-L61-Loremaster
Deglorion - SoA XP Disabler