How to fix error / issue with Porto theme + Mailchim module: subscribe_popup.phtml Ebizmarts_MailChimp block's name: porto_newsletter_popup?

How to fix issue with Porto theme + Mailchim module: subscribe_popup.phtml Ebizmarts_MailChimp block's name: porto_newsletter_popup?

usually error can be shown like this:

Exception #0 (Magento\Framework\Exception\ValidatorException): Invalid template file: 'subscribe_popup.phtml' in module: 'Ebizmarts_MailChimp' block's name: 'porto_newsletter_popup'

just do like this:

copy, all templates from porto

public_html/app/design/frontend/Smartwave/porto/Magento_Newsletter/templates
and
public_html/app/design/frontend/Smartwave/porto-child/Magento_Newsletter/templates

to mailchimp folders.

public_html/vendor/mailchimp/mc-magento2/view/frontend/templates
or to
public_html/app/code/Ebizmarts/Mailchimp/view/frontend/templates

And fixes the problem