inout port binding issue

Hello all,

I  am trying to bind 'inout' port named sda in two different modules in a  top module. But it is showing the below error  when I am executing it.

Error: (E109) complete binding failed: port not bound: port '_top_.sr0.port_5' (sc_in)

Please find the top module and the two submodules in the attachment.

Thank you.