My droplet refuses to boot after I applied a few updates (mainly security updates).

Here is a screenshot of the console error:
https://cl.ly/2O3l1S2X461A

After being put in a rescue environment I have tried a few things I found on Ubuntu forums to remedy the issue but nothing has worked. The last configuration change I made in an attempt to fix the problem was

in file /etc/defaults/grub
set line
GRUB_CMDLINE_LINUX_DEFAULT="noplymouth"

Which was suggested here: https://ubuntuforums.org/showthread.php?t=2218100

If anyone has any suggestions that will prevent me from having to migrate to a new droplet I would appreciate it.