Fatal error: Uncaught Error: Call to undefined function get_user_by() in /var/www/vhosts/hosting141342.a2e73.netcup.net/akademie.bio360.de/wp-includes/user.php:1942 Stack trace: #0 /var/www/vhosts/hosting141342.a2e73.netcup.net/akademie.bio360.de/wp-content/plugins/digimember/system/helper/wordpress.php(261): email_exists('christine2000x@...') #1 /var/www/vhosts/hosting141342.a2e73.netcup.net/akademie.bio360.de/wp-content/plugins/digimember/application/library/autoresponder_handler/autoresponder_handler.php(1020): ncore_getUserIdByEmail('christine2000x@...') #2 /var/www/vhosts/hosting141342.a2e73.netcup.net/akademie.bio360.de/wp-content/plugins/digimember/application/library/autoresponder_handler/autoresponder_handler.php(237): digimember_AutoresponderHandlerLib->_subscribe(Object(stdClass), Object(stdClass)) #3 /var/www/vhosts/hosting141342.a2e73.netcup.net/akademie.bio360.de/wp-content/plugins/digimember/application/model/queue/ipn_out.php(42): digimember_AutoresponderHandlerLib->subscribeForOrder(Object(stdClass)) #4 / in /var/www/vhosts/hosting141342.a2e73.netcup.net/akademie.bio360.de/wp-includes/user.php on line 1942
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