[ SOLVED ] no container class for data
Thanks also to directadmin support i found the solutions.
Usually this error comes when pass through API an invalid username or blank data,for me the problem was that username in /etc/virtual/domainowners file had a blank space at the end of the name,so when i passed to DA the correct username (without blank space) he doesn't recognize the user like existent one.
removing blank space solved the problem
it also possible that username is not in the reseller users.list file.
Bye