Weird Parse Error

Coding Help
1

I’m getting this weird parsing error and I’m not sure why and google isn’t really helping…

It only happens on glitch.

Error:
parse error: Invalid string: control characters from U+0000 through U+001F must be escaped at line 8, column 3

Also the following pages don’t render at all:

2

The correct url would be https://west-mec-coding-year-2-playground-c201-final-project-example.glitch.me/rick

Where do you see this error?