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common/models/CurrencyConversions.php

@@ -131,7 +131,7 @@ class CurrencyConversions extends \common\components\ActiveRecord
      * @param int $toCurrencyId
      * @return mixed.
      */
-    public static function getToUSDRate(int $toCurrencyId): ?array
+    public static function getToUSDRate(int $toCurrencyId)
     {
         $data = self::findOneAsArray('FROM_CURRENCY_ID=:FROM_CURRENCY_ID AND TO_CURRENCY_ID=:TO_CURRENCY_ID AND ACTIVE=1',
             [