move some warn to debug

[shrimalmadhur]

Fixes # .

What Changed?

• Making that warn to debug to not alarm users that something is wrong. If they call the methods of contract which they did not provide, they will get error anyway.

Reviewer Checklist

• Code is well-documented
• Code adheres to Go naming conventions
• Code deprecates any old functionality before removing it

[samlaf]

This is fine. I don't feel 100% convinced this is the right move here though, and expecting this hidden debug warning to result in some user pain at some point haha, but let's see. If we get issues we can change later or figure out a strategy.