Need Help on WordPress theme debug

Hello, we got a soft reject on our product and one point that the reviewer send us is :

  1. Please make sure that your theme doesn’t raise any PHP errors, notices or warnings. Enabling wp_debug can help you with this.

In the screenshot there are errors. I enabled wp debug by wp-config file. I can’t find any error when I open dashboard. Can anyone tell where the error will be shown. Thanks in Advance

You have to install developer plugin and check another php version

Edit wp-config isn’t enough check

Thanks for your . Can you tell me what is the plug-in reviewer using to debug

Have you tried to check the file that trigger the error ?

Thanks for your reply. I solved that error. My question is how to check is there any other errors