I was finally able to get my POD HD500X Edit software to work. I'm new to Mac so it took some learning.
I tried dingdini's solution but it kept giving me a "Authenticating extension failed: Bad code signature" error. The solution was to temporarily disable SIP. There is info on the web if you need more detail, but in short, reboot into recovery mode, go to the terminal and type "csrutil disable". Reboot. Once you are back in MacOS perform dingdini's solution. It "should" work, at least it did for me.
Once you have it working, you can (and should) reenable SIP by booting back into Recover Mode, run Terminal and type "csrutil enable". Reboot back into standard MacOS and you should be all set.