How can fix the script errors?

I read this. https://puravidaapps.com/inject.php
and I make it same. But it doesn't work. What is the problem?

Try spelling element correctly:

document.getElementById

not

document.getElrmentById

But it doesn't work, too.

Have you tested the aia project provided at the bottom of the page:

https://puravidaapps.com/inject.php

yes
It works greats.
but mine is not.

image

TimerEnabled should be set to "false" here

ok
but it is still not working