Why can't I check my box when it's my turn in the Routing chain?

I'm next on the routing chain for a proposal, but I can't check the box next to my name.

 This is because your user account is not currently linked to a Professional Profile in the Cayuse 424 system. The linking between profiles and users can only be activated by a system administrator, so you will need to contact your admins to have this enabled for you.