How do I display the value of an array in my template?

I am using wordpress plugin,

import-users-from-csv plugin upload csv error in text file.

I need a help error log displaying the same screen, displaying an array value print_r();

but display on my screen an error in my foreach

loop.help with my loop correct foreach

.

 Array
(
    [0] => WP_Error Object
        (
            [errors] => Array
                (
                    [existing_user_login] => Array
                        (
                            [0] => Sorry, that username already exists!
                        )

                )

            [error_data] => Array
                (
                )

        )

    [1] => WP_Error Object
        (
            [errors] => Array
                (
                    [existing_user_login] => Array
                        (
                            [0] => Sorry, that username already exists!
                        )

                )

            [error_data] => Array
                (
                )

        )

)

      

        
        
        
      

    

I am using displaying this array value in this foreach, but the value is not displayed, Help with us

foreach($nerrors as $key=>$err)
        {
            echo $err['errors']['existing_user_login'][$key];


        }