Hi @vipul
Here is a more specific solution to the problem π
PHP limits the number of values that you can have in the php configuration files.
In order to extend/increase this limits you need to edit the following files in your php.ini file then restart the service.
I updated the PHP configuration just in case to:
php_value max_input_vars
php_value max_input_time
php_value max_execution_time
I hope this helps.