Ashok

@memeworx, if you deactivate W3TC then the iframe starts appearing? Possible for you to check the source code when W3TC is activated if the iframe code is still there?

@0xrob do you know if the captcha is generated in javascript? And you use minify feature in W3TC? Any error in browser console?

@angelleye, it’s always best practice to update all plugins and themes one by one, but of course after making sure that your wordpress is in latest version. This is because, if a plugin adds a function which is available in latest version of wordpress, in that case you will get a fatal error. So, always update wordpress first and then other things.

I am not saying your issues are because of the same thing I explained above though. It’s good thing you have running all sites fine but one. Looking at the error it seems there are missing files in your wordpress installation.

Would you please download the wordpress as zip, then extract it and upload everything except wp-content folder and wp-config.php to overwrite your current installation? Make sure you don’t upload wp-content folder and wp-config.php file. To stay safe you may want to take a full backup for your site first.

Have a good day!

Cheers
Ash

@fjps3701, is that something because your js file is changed frequently? If so, you can use version number as query param when the js file is enqueued, so every time there is a change in the file, the version number will be changed. Once version (query value) is changed, new version will be loaded. Here is an example:

/**
 * Never worry about cache again!
 */
function my_load_scripts($hook) {
 
    // create my own version codes
    $my_js_ver  = date("ymd-Gis", filemtime( plugin_dir_path( __FILE__ ) . 'js/custom.js' ));
    $my_css_ver = date("ymd-Gis", filemtime( plugin_dir_path( __FILE__ ) . 'style.css' ));
     
    // 
    wp_enqueue_script( 'custom_js', plugins_url( 'js/custom.js', __FILE__ ), array(), $my_js_ver );
    wp_register_style( 'my_css',    plugins_url( 'style.css',    __FILE__ ), false,   $my_css_ver );
    wp_enqueue_style ( 'my_css' );
 
}
add_action('wp_enqueue_scripts', 'my_load_scripts');

Have a good day!

Cheers
Ash

@nate1, to remove w3tc completely you have to remove cache folder, w3tc-config folder and advanced-cache.php (if any) from wp-content folder. Also, you need to remove cache related code from wp-config.php file as well.

I am not sure why this happens even after deactivating W3TC, I hope someone expert will suggest ??

Hello @wpdcb1973

Go to /wp-content/plugins/ and delete w3-total-cache folder. Then go to /wp-content/ folder and delete advanced-cache.php, cache folder and w3tc-config folder. Now open your wp-config.php file and remove cache related code – should be one or two line at the top. And finally, use default .htaccess code or remove cache related code from your current htaccess. This is how W3TC will be completely removed.

Now, download the zip and install the plugin again, manually. It will be installed now.

Have a good day!

Cheers
Ash

Do you have error log enabled? To enable debug mode please edit a line in your wp-config.php:
Change

define('WP_DEBUG', false);

to

define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);

Then upload again and then check the error log.

Also, if you edit the media from media library, then you will see the attachment URL. What happens if you directly visit that URL?

Does it happen when you check from browser in another computer? What’s about mobile or tablet browsers?

Also, would you please check just changing the theme to default one like 2012, flush cache and check again?

Have a good day!

Cheers
Ash

Hello @superpoincare

Would you please create a feature request from your Dashboard > Performance > Support? ??

Have a good day!

Cheers
Ash

Hello @mohammad026

Would you please go to /wp-content/plugins/w3-total-cache/Generic_AdminActions_Flush.php on line 250 and change

$this->flush_pgcache();

to

$this->w3tc_flush_pgcache();

If it works, then submit a bug report from Performance > Support section.

Have a good day!

Cheers
Ash

@lkeels if you are not using php 5.2 then could you please explain the issues you are having? And if you are using php 5.2 then please update your php to 5.6 at least.

Hello @breeziikat

You need to ask your host to update php version to at least 5.6. I don’t think the plugin will make any changes to make compatible with older version 5.2.

Have a good day!

Cheers
Ash

What is your php version? Would you please make sure you have at least 5.6? The current version of W3TC needs newer than php 5.3

@durhamsloveliferave, click on the “Help” button and you will see examples: https://monosnap.com/image/wTlOD1dTSDjVnBzdtn9kFEKahL6nHR

Have a good day!

Cheers
Ash

@gresakg, As far as I know, mfunc tag works in plugin too. Even you can use it in mu-plugins too ??

Have a good day!

Cheers
Ash