How long has it been set up? What's under the shredded newspaper?

Bedding or compost, shredded paper, coir, and left over feed.

But, I dug a little deeper this afternoon. I found some white grubs in the bedding. No idea how they got there.

What does this mean? Are grubs bad for my worms?

"and left over feed"

"But, I dug a little deeper this afternoon. I found some white grubs in the bedding. No idea how they got there. What does this mean? Are grubs bad for my worms?"

Is there warmth being generated in the bin?

Do not add food. Do not add water. Do not pass go. ummm skip the last one.

Add two grocery bags of very dry shredded bedding such as coffee trays, egg cartons, dry peat, dry coir, or even water absorbing crystals and call me in the morning.

I think the worms are escaping heat, and other things created by the rapid decomposition of the food waste by BSFL aka Black Soldier Fly Larvae. But do not worry. Your bin is in the hands of experts. BSFL are great at quickly turning kitchen scraps into the perfect feed for compost worms. When the BSFL have finished their job and the food is ready the worms should go back down. A lot of moisture is produced because the BSFL reduce the volume of waste 90% releasing all the water in the produce.