In \wp-content\plugins\contact-form-7-multi-step-module\contact-form-7-multi-step-module.php comment in fuction function cf7msm_step_2($cf7) this code
/* Disable
if ( !isset($matches[1])
|| ($matches[1] != 1 && empty($step) )
|| ($matches[1] != 1 && ((int) $step) + 1 < $matches[1]) ) {
if ( $has_wpcf7_class ) {
$cf7->set_properties( array(
‘form’ => apply_filters(‘wh_hide_cf7_step_message’, “Please fill out the form on the previous page”)
) );
}
else {
$cf7->form = apply_filters(‘wh_hide_cf7_step_message’, “Please fill out the form on the previous page”);
}
}*/
`
