Encountering Jinja2 SyntaxError after adding another css file

[K0sh1R1zumu]

I've been encountering this confusing error; which is Jinja2.exceptions.TemplateSyntaxError: expected token ',', got 'string'.
This only happened after I added another css file to my html script. But previously, it worked fine.

Here are the previous errors i've encountered regarding this issue:

<link rel="icon" href="{{ url_for('static', filename='images/favicon.png') }}">
jinja2.exceptions.TemplateSyntaxError: expected token ',', got 'static'
    <li onclick="redirectUser('/homepage')">Home</li>
jinja2.exceptions.TemplateSyntaxError: expected token ',', got 'string'

Environment:

• Python version: 3.12.4
• Flask version: 3.0.3

[ThiefMaster]

Show the full template. Also double-check that you don't have e.g. typographical quotes instead of the standard '. Maybe you didn't properly close some previous Jinja tag?