WTF !?? (Problem while buying a player)

WTF : I wanted to buy a player : I make an offer ...
... ... and then, the following happens :

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Now I "lost my money" >> You can notice now I have no token left, ... and I did NOT get the player -which I needed, as I have 2 injured players at that position, and the "reserves" have become "****" as I spent ~2 months without playing because of another "bug" (...)-

But this really sucks...