Daron, this is the error message I get when I try to activate ACFW and the User Access Manager plugins:

Fatal error: Uncaught TypeError: Argument 1 passed to UserAccessManager\Widget\LoginWidget::__construct() must be an instance of UserAccessManager\Wrapper\Php, null given, called in /Users/homehd/Public/AMF/AMF/acmf1203_website/development/bower_components/wordpress/wp-content/plugins/acf-widgets/includes/ACFW_Widget_Factory.php on line 18 and defined in /Users/homehd/Public/AMF/AMF/acmf1203_website/development/bower_components/wordpress/wp-content/plugins/user-access-manager/src/Widget/LoginWidget.php:55 Stack trace: #0 /Users/homehd/Public/AMF/AMF/acmf1203_website/development/bower_components/wordpress/wp-content/plugins/acf-widgets/includes/ACFW_Widget_Factory.php(18): UserAccessManager\Widget\LoginWidget->__construct(NULL) #1 /Users/homehd/Public/AMF/AMF/acmf1203_website/development/bower_components/wordpress/wp-includes/widgets.php(113): ACFW_Widget_Factory->register(Object(UserAccessManager\Widget\LoginWidget)) #2 /Users/homehd/Public/AMF/AMF/acmf1203_website/development/bower_components/wordpress/wp-content/plugins in /Users/homehd/Public/AMF/AMF/acmf1203_website/development/bower_components/wordpress/wp-content/plugins/user-access-manager/src/Widget/LoginWidget.php on line 55

I hope this helps.