diff --git a/src/api/endpoints/class-tainacan-rest-filters-controller.php b/src/api/endpoints/class-tainacan-rest-filters-controller.php
index c1e9d168c..7a93f4c13 100644
--- a/src/api/endpoints/class-tainacan-rest-filters-controller.php
+++ b/src/api/endpoints/class-tainacan-rest-filters-controller.php
@@ -327,7 +327,7 @@ class REST_Filters_Controller extends REST_Controller {
 				$item_arr['enabled'] = $item->get_enabled_for_collection();
 			}
 
-			$item_arr['filter_type_object'] = $item->get_filter_type_object()->_toArray();
+			$item_arr['filter_type_object'] = $item->get_filter_type_object() ? $item->get_filter_type_object()->_toArray() : $item->get_filter_type_object();
 
 			return $item_arr;
 		}
diff --git a/src/classes/filter-types/custom-interval/CustomInterval.vue b/src/classes/filter-types/custom-interval/CustomInterval.vue
index 4b08e2ef3..2ebbf6999 100644
--- a/src/classes/filter-types/custom-interval/CustomInterval.vue
+++ b/src/classes/filter-types/custom-interval/CustomInterval.vue
@@ -4,7 +4,7 @@
         <div v-if="type === 'date'">
             <b-datepicker
                     :placeholder="$i18n.get('label_selectbox_init')"
-                    :class="{'has-content': date_init !== undefined && date_init !== ''}"
+                    :class="{'has-content': date_init != undefined && date_init != ''}"
                     v-model="date_init"
                     size="is-small"
                     @focus="isTouched = true"
@@ -12,7 +12,7 @@
                     icon="calendar-today"/>
             <b-datepicker
                     :placeholder="$i18n.get('label_selectbox_init')"
-                    :class="{'has-content': date_end !== undefined && date_end !== ''}"
+                    :class="{'has-content': date_end != undefined && date_end != ''}"
                     v-model="date_end"
                     size="is-small"
                     @input="validate_values()"
@@ -25,7 +25,7 @@
                 class="columns"
                 v-else>
             <b-input
-                    :class="{'has-content': value_init !== undefined && value_init !== ''}"
+                    :class="{'has-content': value_init != undefined && value_init != ''}"
                     size="is-small"
                     type="number"
                     step="any"
@@ -33,7 +33,7 @@
                     class="column"
                     v-model="value_init"/>
             <b-input
-                    :class="{'has-content': value_end !== undefined && value_end !== ''}"
+                    :class="{'has-content': value_end != undefined && value_end != ''}"
                     size="is-small"
                     type="number"
                     step="any"
diff --git a/src/importer/class-tainacan-importer.php b/src/importer/class-tainacan-importer.php
index 3f4c6b76c..d92aaa624 100644
--- a/src/importer/class-tainacan-importer.php
+++ b/src/importer/class-tainacan-importer.php
@@ -264,7 +264,7 @@ abstract class Importer {
      */
     public function fetch_from_remote( $url ){
         $tmp = wp_remote_get( $url );
-        if( isset( $tmp['body'] ) ){
+        if( !is_wp_error($tmp) && isset( $tmp['body'] ) ){
             $file = fopen( $this->get_id().'.txt', 'w' );
             fwrite( $file, $tmp['body'] );
             fclose( $file );