Fatal error: Uncaught Error: Call to undefined function um_user() in /usr/www/users/emovei/emove-live/wp-content/plugins/php-jwt-0.5/src/um-actions-jwt.php:10 Stack trace: #0 /usr/www/users/emovei/emove-live/wp-includes/class-wp-hook.php(286): add_jwt_header(Object(WP)) #1 /usr/www/users/emovei/emove-live/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #2 /usr/www/users/emovei/emove-live/wp-includes/plugin.php(515): WP_Hook->do_action(Array) #3 /usr/www/users/emovei/emove-live/wp-includes/class-wp.php(504): do_action_ref_array('send_headers', Array) #4 /usr/www/users/emovei/emove-live/wp-includes/class-wp.php(714): WP->send_headers() #5 /usr/www/users/emovei/emove-live/wp-includes/functions.php(960): WP->main('') #6 /usr/www/users/emovei/emove-live/wp-blog-header.php(16): wp() #7 /usr/www/users/emovei/emove-live/index.php(17): require('/usr/www/users/...') #8 {main} thrown in /usr/www/users/emovei/emove-live/wp-content/plugins/php-jwt-0.5/src/um-actions-jwt.php on line 10