Всем доброго здравия. Подскажите может кто сталкивался с таким?
При включенном режиме «Отладка», выдает ошибки в настройках платежной системы PayPal:
Warning: Use of undefined constant LANG_BILLING_SYSTEM_PAYPAL_ACCOUNT — assumed 'LANG_BILLING_SYSTEM_PAYPAL_ACCOUNT' (this will throw an Error in a future version of PHP) in /public_html/system/controllers/billing/systems/paypal/options.form.php on line 14
Warning: Use of undefined constant LANG_BILLING_SYSTEM_PAYPAL_CURRENCY — assumed 'LANG_BILLING_SYSTEM_PAYPAL_CURRENCY' (this will throw an Error in a future version of PHP) in /public_html/system/controllers/billing/systems/paypal/options.form.php on line 21
Warning: Use of undefined constant LANG_BILLING_SYSTEM_PAYPAL_CLIENT_ID — assumed 'LANG_BILLING_SYSTEM_PAYPAL_CLIENT_ID' (this will throw an Error in a future version of PHP) in /public_html/system/controllers/billing/systems/paypal/options.form.php on line 29
Warning: Use of undefined constant LANG_BILLING_SYSTEM_PAYPAL_SECRET — assumed 'LANG_BILLING_SYSTEM_PAYPAL_SECRET' (this will throw an Error in a future version of PHP) in /public_html/system/controllers/billing/systems/paypal/options.form.php on line 36
Установлен InstantCMS 2.15.1, версия биллинга 2.0.6