diff --git a/src/PostTypeRegister.php b/src/PostTypeRegister.php
index aac0cda..2f8522d 100644
--- a/src/PostTypeRegister.php
+++ b/src/PostTypeRegister.php
@@ -85,6 +85,10 @@ public function get_post_types() {
 
 		foreach ( $posts as $post ) {
 			$settings                        = $this->get_post_type_settings( $post );
+			if ( empty( $settings ) ) {
+				continue;
+			}
+
 			$post_types[ $settings['slug'] ] = $settings;
 		}
 
diff --git a/src/TaxonomyRegister.php b/src/TaxonomyRegister.php
index 45e3988..81977e0 100644
--- a/src/TaxonomyRegister.php
+++ b/src/TaxonomyRegister.php
@@ -114,6 +114,10 @@ public function get_taxonomies() {
 
 		foreach ( $posts as $post ) {
 			$data                        = $this->get_taxonomy_data( $post );
+			if ( empty( $data ) ) {
+				continue;
+			}
+
 			$taxonomies[ $data['slug'] ] = $data;
 		}