"Command \algorithmic already defined" when attempting to compile in MiKTeX/TeXworks

Question

I have two questions about the error message described by the subject line.

My first question is why does Overleaf not have this error? And my second question is how do I solve this problem?

I was using Overleaf, but I wanted to change to software installed locally so I don't need internet or have to worry about Overleaf's compilation time limit.

I cannot provide all code here to recreate the problem, as it requires a bunch of other files to be recreated. Instead, here is a link to the template I used, which contains all of the files: https://www.overleaf.com/latex/templates/homework-solutions/xykkzgnbzmxp

I tried to include the code from packages.tex, but StackExchange couldn't detect the newlines and it all appeared as one line. But it is inside the Overleaf template.

I downloaded the project folder from my Overleaf account to my computer and tried compiling it in MiKTex/TeXworks (I installed MiKTex, but the software is called TeXworks after being installed). It gives the following error message:

I have already done research into finding a solution. The following threads have the same error:

Command \algorithmic already defined For this one, the proposed solution is not apparent to me. I read it a few times, and could not find how they solved the problem/where the solution is described here.

algorithm2e Command \algorithm already defined For this one, the source of the problem is different, and I cannot figure out how to use their solution in my case. They are using a package called algorithm2e, but I am not using this package. I took a shot in the dark and tried changing "\usepackage{algpseudocode}" to "\usepackage[algo2e]{algpseudocode}", but nothing changed.

Can anyone help me? I would greatly appreciate any help!