Redirection in a module with error display

[Mehdib92]

Hello,

 

I have a module that allow users to subscribe on my website. If there is an error, I'd like that the module redirect the user to the authentication page with the errors displayed.

 

In my module I added the line

$this->context->smarty->assign('account_error', $this->errors);

The problem is that I don't know how to display the errors with a redirection to the authentication page.

 

And if I don't do a redirection, I have an error that say "Cannot redeclare class..."

 

How can I display the errors with the redirection ?

 

Thanks