100% Send Message (+check) are failing.
Earlier It used to be perfect. But since yesterday none of the Send Message (+check) are going (when I do import URLs and send). I.e. 0% messages are going.
In the past, I did send similar over a dozen projects and they all worked fine.
Not sure what is the problem now?
Screenshot + Backup attached for reference.

In the past, I did send similar over a dozen projects and they all worked fine.
Not sure what is the problem now?
Screenshot + Backup attached for reference.

Comments
All private proxies were not working. But since it were private proxies, not expired, were working fine earlier and software was showing all 25 as working hence I had no reason to think they were not working.
I raised the ticket with the proxies' site and they have resolved the issue.
Thank you for your valuable inputs.