Hi Imran,
Welcome to WPML support. There are some steps that we need you to follow to find out what might be the trigger for the error you have mentioned.
Deactivate Unnecessary Plugins
It seems that you checked all WPML plugins and installed them all. From the debug information, I see that you have many unnecessary plugins installed on your website that might have an effect.
Please deactivate and delete the plugins below, as you do not need them on your installation:
- WPForms Multilingual
- WPML Sticky Links
- Ninja Forms Multilingual
- WPML Export and Import
- WPML GraphQL
- WPML ElasticPress
- WPML CMS Navigation
- WPML Multilingual for CF7
- Advanced Custom Fields Multilingual
Refresh the Site Key
- Make sure that you are logged in wpml.org.
- Go to "WordPress Dashboard > Plugins > Add New > Commercial (Tab)".
- Click the "Unregister WPML" link. (Your translations will be safe)
- Click the "Register WPML" at the right section of the screen.
- Click the "Get a key for this site" link annotated in the screenshot below.
- A new page will open up and the auto-generated key will show in pop-up.
- Copy the key and paste it into the "Site Key" input box annotated in the screenshot below.
- Click the "OK" button.
Screenshot:
hidden link
For more information:
https://wpml.org/faq/install-wpml/#register
Increase the PHP Memory Limit
The minimum requirement is 128M but I suggest that you increase it to 512M: https://wpml.org/home/minimum-requirements/
You can add this by adding the code below to "wp-config.php" file of your WordPress installation root folder:
/** Memory Limit */
define('WP_MEMORY_LIMIT', '512M');
define( 'WP_MAX_MEMORY_LIMIT', '512M' );
Please add the code above the line below:
/* That's all, stop editing! Happy blogging. */
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If the issue persists after following the steps above, please set the next reply as private and provide us the login information of a copy/staging version of the website.
We will apprciate it if you do not give a login information to a live website as the troubleshooting steps might break website. So we need a copy of the website to work on.
Thanks.