[Bitrix\Main\ArgumentException] 
JSON error: Malformed UTF-8 characters, possibly incorrectly encoded [5] (100)
/home/bitrix/www/bitrix/modules/main/lib/web/json.php:137
#0: Bitrix\Main\Web\Json::throwException(string)
	/home/bitrix/www/bitrix/modules/main/lib/web/json.php:124
#1: Bitrix\Main\Web\Json::checkException(integer)
	/home/bitrix/www/bitrix/modules/main/lib/web/json.php:36
#2: Bitrix\Main\Web\Json::encode(array)
	/home/bitrix/www/local/interaction/payment/index.php:93