diff --git a/CRM/TwingleCampaign/BAO/CustomField.php b/CRM/TwingleCampaign/BAO/CustomField.php
index 04324f3..a0a9b81 100644
--- a/CRM/TwingleCampaign/BAO/CustomField.php
+++ b/CRM/TwingleCampaign/BAO/CustomField.php
@@ -205,15 +205,40 @@ class CRM_TwingleCampaign_BAO_CustomField {
 
     try {
       foreach ($options as $key => $value) {
-        $result[] = civicrm_api3(
+
+        $option_value_exists = civicrm_api3(
           'OptionValue',
-          'create',
+          'get',
           [
+            'sequential'      => 1,
             'option_group_id' => $option_group_id,
             'value'           => $key,
-            'label'           => $value,
           ]
         );
+
+        // If the option value does not yet exist, create it
+        if ($option_value_exists['count'] == 0) {
+          $result[] = civicrm_api3(
+            'OptionValue',
+            'create',
+            [
+              'option_group_id' => $option_group_id,
+              'value'           => $key,
+              'label'           => $value,
+            ]
+          );
+        }
+        // If the option value already exist, update it
+        else {
+          $result[] = civicrm_api3(
+            'OptionValue',
+            'create',
+            [
+              'id'         => $option_value_exists['values'][0]['id'],
+              'label'      => $value,
+            ]
+          );
+        }
       }
     } catch (CiviCRM_API3_Exception $e) {
       $errorMessage = $e->getMessage();
diff --git a/CRM/TwingleCampaign/BAO/OptionValue.php b/CRM/TwingleCampaign/BAO/OptionValue.php
index 9de6594..1d808aa 100644
--- a/CRM/TwingleCampaign/BAO/OptionValue.php
+++ b/CRM/TwingleCampaign/BAO/OptionValue.php
@@ -158,7 +158,7 @@ class CRM_TwingleCampaign_BAO_OptionValue {
     // If a specific option value is required
     try {
       $option_value = civicrm_api3(
-        'CustomValue',
+        'OptionValue',
         'get',
         [
           'sequential' => 1,
diff --git a/CRM/TwingleCampaign/BAO/TwingleProject.php b/CRM/TwingleCampaign/BAO/TwingleProject.php
index 8f509c0..fc3f779 100644
--- a/CRM/TwingleCampaign/BAO/TwingleProject.php
+++ b/CRM/TwingleCampaign/BAO/TwingleProject.php
@@ -31,6 +31,13 @@ class CRM_TwingleCampaign_BAO_TwingleProject extends Campaign {
     'one_time',
   ];
 
+  // All fields for hex color codes
+  const colorFields = [
+    'design_background_color',
+    'design_primary_color',
+    'design_font_color',
+  ];
+
   /**
    * ## TwingleProject constructor
    *
@@ -143,11 +150,13 @@ class CRM_TwingleCampaign_BAO_TwingleProject extends Campaign {
    */
   private function strToInt(array &$values) {
     foreach ($values as $key => $value) {
-      if (ctype_digit($value)) {
-        $values[$key] = intval($value);
-      }
-      elseif (is_array($value)) {
-        $this->strToInt($values[$key]);
+      if (!in_array($key, self::colorFields)) {
+        if (ctype_digit($value)) {
+          $values[$key] = intval($value);
+        }
+        elseif (is_array($value)) {
+          $this->strToInt($values[$key]);
+        }
       }
     }
   }
@@ -298,21 +307,18 @@ class CRM_TwingleCampaign_BAO_TwingleProject extends Campaign {
     }
 
     // Validate hexadecimal color fields
-    $colorFields =
-      [
-        'design_background_color',
-        'design_primary_color',
-        'design_font_color',
-      ];
-    foreach ($colorFields as $colorField) {
+    foreach (self::colorFields as $colorField) {
       if (
-        !empty($this->values['project_options'][$colorField]) &&
+        (
+          !empty($this->values['project_options'][$colorField]) ||
+          $this->values['project_options'][$colorField] === "0"
+        ) &&
         (
           !(
             ctype_xdigit($this->values['project_options'][$colorField]) ||
             is_integer($this->values['project_options'][$colorField])
           ) ||
-          strlen((string) $this->values['project_options'][$colorField]) > 6
+          strlen((string) $this->values['project_options'][$colorField]) != 6
         )
       ) {
         $valid = FALSE;
diff --git a/twinglecampaign.php b/twinglecampaign.php
index bda4f1d..04ff8ca 100644
--- a/twinglecampaign.php
+++ b/twinglecampaign.php
@@ -411,8 +411,7 @@ function _validateAndSendInput($id, $campaign_type_id): bool {
       CRM_Core_Session::setStatus(
         $errorMessage,
         E::ts("Input validation failed"),
-        error,
-        [unique => TRUE]
+        error
       );
       // Validation failed
       return FALSE;