What potential PHP configuration setting was suggested to resolve the issue?
The issue is related to the "max_input_vars" PHP configuration setting, which limits the number of input variables that can be accepted by a PHP script. To resolve the issue, it is recommended to increase the value of "max_input_vars" in the php.ini configuration file to a higher number. This will allow the PHP script to handle a larger number of input variables.
// Increase the max_input_vars setting in php.ini
ini_set('max_input_vars', 5000);