Used OBD fusion APP with VeePeak and Tundra won't start!

Update..well truck jumped fine and is now running. Maybe it was just pure coincidence the battery died right when I did this? I had only spent about 3-4 minutes doing this, and it's a newer battery. Seems strange. Original post is below

Hey guys. 2012 Tundra here. I plugged my Veepeak into my OBD on my truck, downloaded the OBD fusion app and put these two codes into the fusion app mentioned in this video (Linked Below) to check trans temp. Truck was off when I did this, with key in the ignition. It showed the trans temp just fine in the fusion app on my phone, so I figured all was well. Well, I went to start my truck with the Veepeak still connected and nothing. Truck won't start at all.

I took the veepeak out, and when trying to start the truck I now hear a real fast clicking.

I tried to put the veepeak back in and see what it says, but it says it can't connect because voltage is too low and to check fuses.

https://www.youtube.com/watch?v=5DLkja6vXvc&t=2202s

Any ideas?