I recently added my Drupal 10 website on OVH. I installed the SSL certificate and the site is working properly with HTTPS. However, when I test the form (Webform module) which includes a field for uploading a file, upon clicking the 'submit' button, an error appears on the page: Error 503 Backend fetch failed. Guru Meditation: XID: xxx Varnish cache server.
The form is a 'Webform' module in Drupal 10. It was working correctly in my local environment; I was able to submit the file without any issues. However, now that it's in production, when I test it, I encounter this error.
Could this be an issue with the webform module configuration, specifically the upload file settings?