I opened the back of the dryer and saw this piece had come off in a part and was obstructing the airflow. I followed the instructions in the video to clean and replace it, and everything works. This was a lot easier that I thought it would be, and I will definitely make AppliancePartsPros my first stop for any other appliance issues.
I also wanted to note the shipping is fantastic. Normal shipping price, but you basically get 2-day shipping. I ordered the part on Saturday, and it arrived on Tuesday. Nice!