iPhone 8 freezes while on a call
Today, my iPhone 8 on iOS 13.6 completely froze up to the point where I could not do anything to end the call. I had to do a reset (hold the home button and the power button), just to reset so I could use it again. Now I am afraid to use my phone again because of this and I do not have the funds available to purchase a different model at this time. What could be the issue(s) that are causing this? Another thing, I have been freeing up space on my phone as well and the next day, without me doing anything, I go from over 1 GB to 340 MB overnight and I do not have automatic updates turned on. Any help would be greatly appreciated, especially from Apple.
iPhone 8, iOS 13