Nucleus installation issue using script

Here’s the error:

Failed to install script : Download of failed : Failed to connect to : Interrupted system call

Looks like this download location doesn’t exist. I’m assuming this can be changed within the file found under /user/libexec/webmin/virtual-server/scripts/, but I’m not sure where to do this. The only URL I can find was on line 119 but it points to “$”.

Anyone have any ideas?