Username and My Profile links don't work

[CC16]

I'm creating my first Vb forum and when I test the page almost everything works fine. But if I click on my username after the word welcome at the top, the page won't load, the same happens for the My Profile link. On my iPad I just get a blank page, on my desktop it's something along the lines of page cannot be reached.

Have I messed something up somewhere?

[Lynne]

Link? What version of vB did you install? What version of PHP and MySQL are on the server?

[CC16]

Thank you lynne for your reply, however my host's tech team offered to fix the problem for me :-)