Yes this is a kernel panic which occurs when something goes terribly wrong inside the system. This could be anything from broken software to defective hardware. You should observe if this happens regurlarly.
I tried seaching it online but the only I could find (that I understood how to use it) was to run "sudo ldconfig" which didn't seem to day anything. I have no idea if that actually fixed the problem or not but if it didn't, do you have any other solutions?
ldconfig sets up links and caches for loading library code. That might be an issue if your install is broken between updates. You can use ldd to check if code can be looked up. ldd /usr/lib/x86-64-linux-gnu/libpcre2-8.so.0 should show no errors. Likewise for ldd /usr/sbin/init.
Ok, so Synaptic Package Manager states that it's installed in the exact location you say that it's supposed to be in but ldd states "No such file or directory". What's going on here?
It's probably just paranoia but every laptop I've ever owned has had a problem pertaining to repeatedly turning them off and on again. This laptop is my mom's and I'm just using it because my old one stopped working and I really don't want to break this one too.
You'll break things if you do more and more stuff suggested inside this thread without testing it. Maybe executing ldconfig was enough, but if you try more and more stuff you don't know what you did. Linux is very hard to break, especially when you didn't mess around with things like packages and libraries by yourself, there's mostly a way back. But if you're scared use the time and make a backup and a live USB stick with a Linux distro of your choice to rescue the system if something's terribly messed up.
I'm not concerned about Linux breaking, I'm concerned about the laptop itself. My last laptop stopped being able to boot into any OS or even enter the bios after I was repeatedly restarting it one day and my laptop before that has a problem where for some reason the screen gets dark spots if it's turned on more than once a day. I also have another laptop that has a failing GPU and another that for some reason can't read internal hard drives anymore. In the off chance that Linux does have problems, I am already prepared for that but as I said, I'm more concerned about the laptop. We've had it for over 5 years and we really can't afford a new one.