No need to Panic. GMX admin is very honest and will definitely credit your LR soon.
May I know what are the procedures you did in GMX to exchange your Evo to LR? First you shall need to add fund in GMX, and after that you should go to the "exchange" tab and from there you should select the option "convert Evo to LR". And then you have to withdraw the LR, that's all. Your order will be processed within 24 hours if the admin is not online, and if he is online, your order will be processed within even 1 or 2 minutes.