Blocked nightbot in YouTube, how to unblock?

So during a friends live stream the nightbot was set to message so often it was driving me crazy so I thought to get some peace and quiet, I will block nightbot then try and unblock at a later date.
However, I have checked inside my google account and the YouTube studio to find people blocked and Nightbot is nowhere to be seen.
I have tried to search for it but I cannot see it anywhere to unblock.
Now anywhere I go that uses Nightbot, I do not see any commands or text at all.
Is there anyway that I can reset this and unblock Nightbot?
Thanks In Advance

You can unblock people on your Google account at https://myaccount.google.com/blocklist?pli=1