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Problem:

You are experiencing a server 500 error when clicking the 'Mark Complete' button on translated LearnDash courses in French (Canadian). This issue might be related to the table structure of the course's lessons and topics in the translated version.

Solution:

First, ensure you are following the steps recommended in our documentation to translate LearnDash Courses, which must be done manually. You can find the guidelines here:

https://wpml.org/plugin/learndash-lms/
https://wpml.org/documentation/plugins-compatibility/how-to-create-multilingual-online-courses-websites-using-learndash-and-wpml/

Next, install the LearnDash Multilingual add-on after a site backup for better WPML compatibility. You can download it here:

https://learndash.com/support/kb/add-ons/compatibility-add-on/compatibility/#h-option-1-add-ons-menu-requires-an-active-learndash-license

If the issue persists, please upgrade to the latest version of WPML (4.7 series) after a full site backup. Check for updates in the Plugins>>Add New>>Commercial tab.

If this solution does not resolve your issue or seems outdated, we recommend opening a new support ticket. We also advise checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. For further assistance, please visit our support forum at https://wpml.org/forums/forum/english-support/.

Problem:
The client was experiencing an issue where the URLs in the Nectar Slider were not being translated correctly and were always pointing back to the English version.

Solution:
We provided a workaround to address the issue with the Nectar Slider post type. Before proceeding, we emphasized the importance of backing up the database and website.

1. Edit the file

/wp-content/plugins/salient-nectar-slider/includes/frontend/helpers.php

2. Around line 814, replace the existing code for button 1 URL with the following custom code:

if ( ! empty( $button_1_text ) ) {

	// WPML Workaround for compsupp-7240
	if (class_exists('Sitepress') && ! empty( $button_1_link ) ) {
		$current_lang = apply_filters( 'wpml_current_language', NULL );
		$button_1_link = apply_filters( 'wpml_permalink', $button_1_link, $current_lang, true );
	}
	
	$button_1_link = ! empty( $button_1_link ) ? $button_1_link : '#';
}

3. Apply the same workaround for button 2 URL around line 845 with similar custom code.
4. After creating and translating a Nectar Slider post, edit a page, add the Nectar Slider element, select the slider location, save, and translate the page. The internal URL will then be adjusted in the frontend.

Please note that this solution might be outdated or not applicable to your case. If it doesn't resolve your issue, we highly recommend checking related known issues, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If you still need assistance, please open a new support ticket.