diff --git a/src/classes/repositories/class-tainacan-metadata-sections.php b/src/classes/repositories/class-tainacan-metadata-sections.php
index e9886beef..024ee903d 100644
--- a/src/classes/repositories/class-tainacan-metadata-sections.php
+++ b/src/classes/repositories/class-tainacan-metadata-sections.php
@@ -381,8 +381,10 @@ class Metadata_Sections extends Repository {
 		$metadata_sections_ids = $this->fetch_ids();
 		$collection_metadata_sections_id = array_diff(array_map(function($el) {return $el->get_id();} , $this->fetch_by_collection($collection)), [\Tainacan\Entities\Metadata_Section::$default_section_slug]);
 
-		$args_exclude = array_merge(
-			array(
+		if ( empty($collection_metadata_sections_id) ) {
+			$not_post_ids = [];
+		} else {
+			$args_exclude =	array(
 				'meta_query' => array(
 					'relation' => 'AND',
 					array(
@@ -398,10 +400,11 @@ class Metadata_Sections extends Repository {
 						)
 					)
 				)
-			)
-		);
-		$list_exclude = $metadata_repository->fetch_by_collection($collection, $args_exclude);
-		$not_post_ids = array_map(function($el) { return $el->get_id(); }, $list_exclude);
+			);
+			
+			$list_exclude = $metadata_repository->fetch_by_collection($collection, $args_exclude);
+			$not_post_ids = array_map(function($el) { return $el->get_id(); }, $list_exclude);
+		}
 
 		$args = array_merge(
 			$args,
@@ -416,10 +419,8 @@ class Metadata_Sections extends Repository {
 							'compare' => '='
 						),
 						array(
-							array(
-								'key' => 'metadata_section_id',
-								'compare' => 'NOT EXISTS'
-							)
+							'key' => 'metadata_section_id',
+							'compare' => 'NOT EXISTS'
 						),
 						array(
 							'key' => 'metadata_section_id',