When using safari on my iPad and iPhone, over the last few days, I've noticed I can no longer access the vyrso.com website. I get this error message:

My iPad and iPhone are connecting to every other website I want to access (including logos.com), but vyrso is the only one, so far, I'm noticing this problem with.
I haven't recently changed any settings on my mobile devices or network. This problem seems to have come out of nowhere!
I disabled my home wifi network on my iPhone and tried to connect to vyrso.com using my cellular network, and still couldn't connect to the vyrso website. This would suggest its a device, not network issue?
I also reset the network settings on my iPad, and deleted cookies, etc. Still no joy...
Both my iPhone and iPad are using iOS 7.1.1.
Can anyone help? Thanks.
[EDIT - I can access vyrso.com fine from Safari on my MBA from my home network, so this appears to be an iOS device issue...]