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Have you added any plugins lately? Anything to minify your js and css? Anything to speed up your site, by moving all scripts to the footer? They would be my first port of call to find out what's...

@viv

I dont know if i am right, but it looks like some files are missing? like load.php, header.php ? or they are not accessible from your child theme?

about the jquery is not defined please...

You should first investigate the "500 Internal Server Error". For this you will need to see the server logs, if you have access to say the cPanel you can go and view the "Error" logs.

Hi vicheng,

Customizations are not officially supported by AppThemes.If you changed the default theme and have questions please use the General Discussion forum.

Moved your thread there.
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