Got a problem in using MOZ Crawl test

[turkeyanaclinic]

Hello, 
Guys i need help as i'm getting this message "**Moz was unable to crawl your site on Dec 26, 2017. **Our crawler was not able to access the robots.txt file on your site. This often occurs because of a server error from the robots.txt. Although this may have been caused by a temporary outage, we recommend making sure your robots.txt file is accessible and that your network and server are working correctly. Typically errors like this should be investigated and fixed by the site webmaster."
After i made a Campaign i'm getting this message but after i created new campaign it crawls well
can you help me to edit the old campaign ?

Regards.

[eli.myers]

Hey!

Thanks for reaching out to us!

Would you be able to copy+paste what you have written above into an email to help@moz.com as well as including your email address, this will allow us to better investigate into this issue.

Looking forward to hearing from you!

Eli