View file resources/lang/en/errors.php

<?php

return [
    'error'               => 'Error',
    'return'              => 'Return',
    'to_main'             => 'To main',
    'unauthorized'        => 'Unauthorized!',
    'forbidden'           => 'Access denied!',
    'not_found'           => 'This page does not exist!',
    'method_not_allowed'  => 'The passed HTTP method is not supported on this page!',
    'page_expired'        => 'Session expired!',
    'too_many_requests'   => 'Too many requests!',
    'server_error'        => 'Internal server error!',
    'service_unavailable' => 'Service unavailable!',
];