Fatal error: Uncaught Error: Class ‘WPML_URL_Converter_Url_Helper’ not found

Hi,

I have a fatal error :

Fatal error: Uncaught Error: Class ‘WPML_URL_Converter_Url_Helper’ not found in /home/clients/4c92f15a23c3da62bb5c79a3f586714f/web/wp-content/plugins/events-manager-wpml/em-wpml-permalinks.php:48 Stack trace: #0 /home/clients/4c92f15a23c3da62bb5c79a3f586714f/web/wp-content/plugins/events-manager-wpml/em-wpml-permalinks.php(27): EM_WPML_Permalnks::rewrite_rules_array_langs(Array) #1 /home/clients/4c92f15a23c3da62bb5c79a3f586714f/web/wp-includes/class-wp-hook.php(286): EM_WPML_Permalnks::rewrite_rules_array(Array) #2 /home/clients/4c92f15a23c3da62bb5c79a3f586714f/web/wp-includes/plugin.php(208): WP_Hook->apply_filters(Array, Array) #3 /home/clients/4c92f15a23c3da62bb5c79a3f586714f/web/wp-includes/class-wp-rewrite.php(1443): apply_filters(‘rewrite_rules_a…’, Array) #4 /home/clients/4c92f15a23c3da62bb5c79a3f586714f/web/wp-includes/class-wp-rewrite.php(1464): WP_Rewrite->rewrite_rules() #5 /home/clients/4c92f15a23c3da62bb5c79a3f586714f/web/wp-includes/class-wp-rewrite.php(1805): WP_Rewrite->wp_rewrite_rules() #6 /home/client in /home/clients/4c92f15a23c3da62bb5c79a3f586714f/web/wp-content/plugins/events-manager-wpml/em-wpml-permalinks.php on line 48

If I deactivate the plugin events manager and wpml compatibility, the error disappear, but the events aren’t showing correctly.
I can then reactivate the plugin, and it works again, til I make some changes in the parameters and the error is coming back.

WordPress : 5.1
Events Manager : 5.9.5
Events Manager Pro : 2.6.4
Events Manager and WPML compatibility : 1.2
WPML : 3.5.3

Do you have an idea what can I do ?
Thank you

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