Setting up

Hi all

I’m not great with technology so please bear with me.

I have a basic elite turbo trainer, I have purchased a wahoo SC blue speed and cadence sensor’. The sensor appears to be connected. I’m currently on the ‘free trial’ section but the avatar won’t move and also have no Speedo etc registering.
I want to pay the monthly subscription so I can get riding but I am completely stuck.
Please help!