Can't send mini-ranks to another Sythe Member?

I am not able to send any of my tradeable mini-ranks to another Sythe Member, I tried to send it to various members to check if that works, but also no succes. When I typed in the user and press find it loads and that's it. I have the mini rank selected aswell only when I hover over the continue button it gives a denial button and I can't press continue.

Anyone know how I can solve this problem?
Thanks in advance!

 

[Moes]

@Matthew

 

@Snail have you tried using a different browser?

I've noticed sometimes things stop working on one browser, but is fine on another.

 

[NiftyMarket]

Anyone else know what the problem may be? Me and him are trying to trade.