EUR Trustline Error

[Mr_G]

I’m trying without success to transfer some EUROs to my wallet. However, I received an email saying that I have to setup a EUR trustline.  Problem is every time I try to do this I get and error, see attach search shot.  I’ve tried repeatedly to request help via the help chat box, but get no reply. I just keep getting an email telling to setup the trustline. 

Any ideas how I can resolve this??