Issue #3347785: The website encounter an unexpected error

src/Form/SettingsForm.php

@@ -99,7 +99,7 @@ class SettingsForm extends ConfigFormBase {
     /* @see \Drupal\openy_programs_search\DataStorage::getExcludeLocationMapIds */
     $exclude_location_map = $config->get('exclude_location_map');
     $num_exclude_location_map = $form_state->get('num_exclude_location_map');
-    if (empty($num_exclude_location_map)) {
+    if (empty($num_exclude_location_map) && $exclude_location_map) {
       if (count($exclude_location_map) < 1) {
         $num_exclude_location_map = 1;
         $exclude_location_map = [];
@@ -152,7 +152,7 @@ class SettingsForm extends ConfigFormBase {
     // Location name string replace for Daxko Location Map.
     $name_string_replace_location_map = $config->get('name_string_replace_location_map');
     $num_name_string_replace_location_map = $form_state->get('num_name_string_replace_location_map');
-    if (empty($num_name_string_replace_location_map)) {
+    if (empty($num_name_string_replace_location_map) && $name_string_replace_location_map) {
       if (count($name_string_replace_location_map) < 1) {
         $num_name_string_replace_location_map = 1;
         $name_string_replace_location_map = [];
@@ -209,7 +209,7 @@ class SettingsForm extends ConfigFormBase {
     /* @see \Drupal\openy_programs_search\DataStorage::getLocationsByChildCareProgramId */
     $pinned_programs = $config->get('pinned_programs');
     $num_pinned_programs = $form_state->get('num_pinned_programs');
-    if (empty($num_pinned_programs)) {
+    if (empty($num_pinned_programs) && $pinned_programs) {
       if (count($pinned_programs) < 1) {
         $num_pinned_programs = 1;
         $pinned_programs = [];