Hello,

You are Most Welcome.

I have logged in to your website and tried to replace the .pot file using the WP file manager plugin and caught an error.

Screenshot for Clarification: https://ibb.co/0c87Qqt

Please provide with ftp or Cpanel details.

OR

You can simply change the .pot file from Cpanel and then synchronize before translation as you did for the other website. That will surely fix the issue.

Best Regards.