Shariq Khan

Check you .htaccess and see if you find anything that looks out of place.
Also, try enabling debug log on the site, and see what the logs say.

Logs can be found in wp-content/debug.log file

Try the steps mentioned here

Hmm… seems odd. PHP should be available, else WordPress wouldn’t be running.

Try this:

1. Inside the directory lawandrevolution, create a .php file with any name you like.

2. Edit the file, and paste the following code in it:

<?php
phpinfo();
?>

3. Now execute the file in the browser. So, if the filename you had chosen was testphpfile.php, then open this in your browser:

https://lawandrevolution.com/testphpfile.php

4. Search for the keyword json in the information that is displayed.

5. Once you are done with debugging your issue, delete the file.

• This reply was modified 3 years, 7 months ago by Shariq Khan.

buzzword-bingo:~/web_scripts/lawandrevolution> php -i | grep json
php: Command not found.

In that case try this:

 
which php 

You’ll get an output that looks something like:

/usr/bin/php

The exact path may differ depending on your system. But whatever path you get, use that to run the command from the previous comment.
So, if your path is /usr/bin/php , then use this command:

/usr/bin/php -i | grep json

Fatal error: (mghachem) Uncaught Error: Call to undefined function json_encode()

json_encode is a standard PHP function. So, it should have been available by default.
UNLESS
1. You are using PHP version < 5.2, which is not the case as you mentioned in your first comment that you have upgraded from 5.5.26 to a higher version
2. Or PHP was compiled without JSON.

You said that you did the installation manually. Was it PHP or WordPress that you installed manually?
If it was PHP that you compiled manually, then you should check ( the manual install instructions that you followed) if there was a step where you used the flag --disable-json

If you have access to the server and can run commands on it, then try this:
php -i | grep json

Paste the output here

Can you post the URL of the pages in question?

what’s the best place to put it

It depends on whether the script in question is a part of a plugin or a theme.
If you need the script for a plugin that you are writing, then store them inside a sub-directory within your plugin (or theme)

However, if the script in question has no link to your plugin (or theme), then you shouldn’t bother with it.

May I ask whats your use case?

Try flushing the Autooptimize cache, and deactivating the plugin temporarily.
See if it fixes the issue

The gtmatrix is something which needs looking at code and your site’s backend to fix, which is out of the scope of this forum.

You can try minifying the scripts, moving non-critical scripts to the footer, and using an optimization plugin.

Probably, hire a developer to fix it, if you are not sure of what you are doing

Perhaps try disbaling WPML plugin momentarily, and see if that has any effect

The error file is named debug.log and it will be created in the /wp-contents directory

Perhaps try enabling debug logging in WordPress?

Haven’t used any of the image optimization plugins in a long time, but you can try one of the plugins listed here or here

Can you post a screenshot of thw post edit screen for a post which displays featured image on the backend, but not on the frontend?

Doesn’t WordPress load jQuery by default?
I don’t think you need to load it again from some other source because WP already bundles that in.