Fatal error

Hi, I installed UM and got the following error:

Fatal error: Uncaught Error: Call to a member function language_url() on null in /kunden/553967_14482/webseiten/wordpress/wp-content/plugins/ultimate-member/core/um-short-functions.php:636 Stack trace: #0 /kunden/553967_14482/webseiten/wordpress/wp-content/plugins/ultimate-member/core/um-short-functions.php(698): um_get_url_for_language(NULL, false) #1 /kunden/553967_14482/webseiten/wordpress/wp-content/plugins/ultimate-member/um-config.php(114): um_get_core_page(‘user’) #2 /kunden/553967_14482/webseiten/wordpress/wp-content/plugins/ultimate-member/admin/core/um-admin-redux.php(47): include_once(‘/kunden/553967_…’) #3 /kunden/553967_14482/webseiten/wordpress/wp-content/plugins/ultimate-member/admin/core/um-admin-redux.php(36): UM_Redux_Framework_Config->setSections() #4 /kunden/553967_14482/webseiten/wordpress/wp-includes/class-wp-hook.php(286): UM_Redux_Framework_Config->initSettings(”) #5 /kunden/553967_14482/webseiten/wordpress/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #6 /kunden/553967 in /kunden/553967_14482/webseiten/wordpress/wp-content/plugins/ultimate-member/core/um-short-functions.php on line 636

Can you help me out?

I really need to get this running. May it be an issue with the Polylang plug-in?

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