Cs Cart 4.9.3 Sp1 - Servired And Php 7.2.16

Since changing to PHP 7.2.16 and updating to 4.9.3 SP1, started to get many issues (not always) with Servired payment gateway, customers saying that when they choose this payment method and clicking "send the order" it comes white page and they can not introduce payment details, as a result customer gets order as declined.

The only strange notice that found in logs is

PHP Notice: Undefined offset: 9915 in /app/payments/servired.php on line 74

Anyone has similar issue?

Is servired completely compatible with PHP 7.2.16 or it is better to switch to 7.1.27 ?

Update:

One of the customers just sent us the screenshot, after clicking Send order he was redireted to Servired page with price 0.00 and it says Error occured, please contact store admin.

But no errors were found in logs.

Please post a request to HelpDesk so that we could check the issue.

PHP Notice: Undefined offset: 9915 in /app/payments/servired.php on line 74

Anyone has similar issue?

Update:

One of the customers just sent us the screenshot, after clicking Send order he was redireted to Servired page with price 0.00 and it says Error occured, please contact store admin.

Did you solve the problem? I have 4.11.5 version but since changing PHP version also have this problem.

Thanks!