managed-key permission issue

Hi all good afternoon first of all forgive me for my english, in not good at it, second im preatty new at sentora i managed to install following the tutorial of the official page, all went good but when i tried to add a new domain and generate de dns in the sentora panel it shows me an error when i navigate to the url of the domain throwing me a dns error i searched and found the logs of bind


I followed another thread with similar issues i they said i had to edit  /etc/named.conf  file adding this line of code

 
I edited the file and it looks like this
 
After that i followed the other steps of the thread  to do thr rm and restart commands but then appears and error

I tried to seek for those logs and found them
Here is the other log


Im stuck and this part i would appreciate the help. Thanks