When I tried copy and pasting the content of the Kmathz, I found a series of UTF8 values.
We find that these are all bunch of zero-width characters, and a research further revealed they are used for steganography. Using the website https://neatnik.net/steganographr/#results we revealed the following text
Hello fellow CodeTiger Loyalists. Due to our joint effort, his escape has been successful. The non-Loyalists may think him gone, but we know the truth. He is merely lying in wait to return with an LIT problem to dazzle us all. Let it be known: C0dEt1GeR_L1VES
Which ended up being the flag.