Hi Vahid,
Sorry to hear about the issues you are facing!
Can you confirm that you are fully updated? (Theme and Plugins)
You can find the latest version numbers here: (https://theme.co/changelog/) Then you can compare them to what’s installed on your site.
If you find anything to be out of date, you can review our update guide.
If you are fully updated and still facing the issue, please provide us with your URL and WordPress login credentials so we can take a closer look to the issue. Don’t forget to select Set as private reply to ensure your data remains hidden from other users.
Thanks!