Finally, all errors are solved......
all issues resolved.
FULLY NULLED (I just worked on the screenshot issue, nulled by some1 else)
1. do not use any PHP version over PHP 7.4 (8.0 / 8.1 - STRICT NO)
ANSWER: you will get HTTP Error 500 on reload/download as PDF. On PHP 7.4 all works fine.
2. screenshot not working issue SOLVED
ANSWER: 2 custom PHP files inside (core\helpers\site_snapshot_helper.php). the current enabled PHP file has google API integrated, just get your own google API and place it inside the file, and boom, screenshot working again. and the "bak1" file has "APIFLASH" integrated as mentioned above in the discussion, get you apiflash API and place it in the file and it will start working. NO more calling home.
3. don't forget to block access to admin folder and set permission 444 to index.php as mentioned above and you will be good to go.
thanx
Turbo Website Reviewer v2.6 Nulled FINAL