Before this ticket gets assigned to my colleagues, I will try to help.
Issues like this can sometimes take place for multiple reasons (sometimes they are even server-related).
I recommend that you first create a full website backup and then remove the plugin completely (deactivate and delete) > then manually download the latest version from here (https://wpml.org/account/downloads/ - select "Download WPML manually") > then install and activate the plugin.
This way (going with a manual update), we might get over this error.
Hi Mihai - I have tried to download WPML manually but this did not work for me either. The site does confirms that WPML is registered on the site. Can you please help?
I would like to request temporary access (wp-admin and FTP) to your site to take a better look at the issue. You will find the needed fields for this below the comment area when you log in to leave your next reply. The information you will enter is private which means only you and I can see and have access to it.
Our Debugging Procedures
I will be checking various settings in the backend to see if the issue can be resolved. Although I won't be making changes that affect the live site, it is still good practice to backup the site before providing us access. In the event that we do need to debug the site further, I will duplicate the site and work in a separate, local development environment to avoid affecting the live site.
- Please make a backup of the site files and database before providing us access.
- If you do not see the wp-admin/FTP fields this means your post & website login details will be made PUBLIC. DO NOT post your website details unless you see the required wp-admin/FTP fields. If you do not, please ask me to enable the private box.
You mentioned not to add the login details into a text box, but I can not see the form where I can add access details. Please see attachment, what am I missing?