Thank you @branden for your input! 
Hello zdQktyRA,
I understand the situation. Then I can recommend to fully disassemble the Shake, check that every contact is clean and in a good state, then reassemble everything taking care of checking that all the connections are good.
At this point, re-burn the microSD card to eliminate all issues and start from a fresh install.
These are the instructions to prepare the new OS image:
- Please take the microSD card you have and format it before burning the new Shake OS image
- Make sure, when you format it, that the shown capacity is the maximum (i.e. if the SD card is 32GB like yours, then the capacity should be near or equal to that value). This is to check that no partitions have been involuntarily and erroneously created. They could be the cause of the error we see now
- Take care to format the SD card in a FAT32 File System (or exFAT if the SD card is 64GB or larger)
- Download the new Shake OS image from here: https://gitlab.com/raspberryShake-public/raspShake-SD-img/raw/master/raspishake-release.zip
- And follow the microSD burning instructions from here: raspishake-microSD-card-software-Instructions.txt · master · raspberryShake-public / raspShake-SD-img · GitLab
I followed the numbered list points to burn the files on my SD cards, and I have not used Etcher or similar software.
Finally, since you are using a Raspberry PI4 board, remember to execute the commands illustrated in this post after the re-burn is done: Stuck on config screen - #6 by ivor
This will give us a clean slate to work with, and to proceed with our troubleshooting if the page continues to be blank.