Zen Cart 1.5.6c
PHP Version: 7.3.18
Database Engine: MySQL 5.5.5-10.3.23-MariaDB
Square Payments 1.1

I have been getting a number of square payment failure messages with the code "GENERIC_DECLINE". I am getting some payments through as well. Was wondering If this is an intermittent site issue or User error.

Any Advice welcome