Dokan Pro - WPML Update Fails When Dokan Pro is Active

Overview of the issue

Updating WPML plugins from the Plugins > Add New > Commercial tab fails when Dokan Pro is enabled. The update process ends with the error invalid_update_url.

Workaround

Please, make sure of having a full site backup of your site before proceeding.

Option 1

• Manually update WPML Plugins

Option 2

• Open …/wp-content/plugins/dokan-pro/dependencies/Appsero/Updater.php file.
• Look for line 45.
• Comment out this line:

  //add_filter('upgrader_pre_download', [$this , 'validate_plugin_update_url'], 10, 2);