Pending orders - not completing

I have tried to buy Argo Blockchain and my order has been pending for hours? Has anyone else had this issue? Why won’t it complete?

@Cway you might find the post below useful.

Struggling with market order - #6 by David

You and EVERYONE else it seems! I think I placed my order at like 10am this morning, still pending. I’m scared to see what it eventually buys in at.