My turkey calls needs help

Oh Turkey Call Gods, Please help me.

So I went out two weeks ago, calls worked just fine.
I went out this Saturday, and I could not get a peep out of my pot call or my box call.  

I have a Primos Ol' Betsy slate call and I don't remember the box call.

So I took a scotchbrite pad to the slate, tried it and I got a squeak.  Which may be fine if I was trying to call baby chickens...
tried scuffing up the bottom of the striker as I had seen in multiple places online.  Same thing.  I went to my dad's house and used a striker he had, worked like a charm.  So he let me use his for the last weekend, but not that this has been an issue I want a second one in case this happens again.  So.... Any thoughts on what I can do to fix my striker?

As far as the box call, from what I saw online I just need to add chalk.  Any specific chalk?  Can I take a piece of my daughters sidewalk chalk and rub it on there? (That's what it looked like in one of the videos I saw)  Or is there some specific thing I have to get.

Thanks in advance,
Your humble, terrible turkey calling, servant