Some time directadmin license is suspended due to non-payment or some other reasons
After payment, you should be active and update your license
1- /usr/local/directadmin/scripts/getLicense.sh auto
2-service directadmin restart
There are an other method
cd /usr/local/directadmin/scripts
./getLicense.sh Client ID License ID server ip
service directadmin restart
Thanks
Webanchor Support Team