Homemade Lacto starter and mold?

So I'm following Morkin's method for creating a starter. I put a cup of crushed pale malt into a jar with a cup of 130 degree water and covered it with foil. The idea being to leave it for a week and I'd have a lacto starter. After 4 days I checked it, and there appears to be a bit of gray mold growing on the top. I'm assuming this is a bad thing, and I'll need to scrap it and start over. Please correct me if I'm wrong. That said, how would you keep mold from popping up over a week?

I know you can do the starter in a day if you use a heating pad or something to keep it around 100, but I don't have one of those right now so I thought I'd try this method. Any input/suggestions would be appreciated.

https://www.homebrewtalk.com/f127/pellicle-photo-collection-174033/index38.html

Check out the pellicle collection, that is likely what formed for you.

Oh awesome! That's what it looks like. So it's just pellicle and I should be fine then! Thanks!

Smells a bit like sour milk and feet, so I'm pretty sure it's alright. No fuzz or fur or anything just the dry gray chalky stuff that I see in the pellicle thread. Here's what it looks like.

Thats also what mine looks like *highfive* !

I did the same method, and my starter after 4 days has formed a pellicle. Still smells like it should, is this normal?

Yep. That's exactly what happened with mine.