diff --git a/wp-admin/includes/ajax-actions.php b/wp-admin/includes/ajax-actions.php
index d1d27f704d..a6f4a21e45 100644
--- a/wp-admin/includes/ajax-actions.php
+++ b/wp-admin/includes/ajax-actions.php
@@ -5433,6 +5433,6 @@ function wp_ajax_send_password_reset() {
 			sprintf( __( 'A password reset link was emailed to %s.' ), $user->display_name )
 		);
 	} else {
-		wp_send_json_error( $results );
+		wp_send_json_error( $results->get_error_message() );
 	}
 }
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 16d1c862e0..5ec3d254cc 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.7-beta3-50389';
+$wp_version = '5.7-beta3-50390';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.