Is my GPS working?

Hi Mitch, from your logs it looks to me like your SD card is corrupted. My guess is that re-burning the OS will solve this issue, although your SD may also be nearing the end of its life. The image and instructions for copying the OS to the card are here: https://gitlab.com/raspberryShake-public/raspShake-SD-img

If you do end up buying a new card I recommend one of two: