The hardfork 26 had a small bug that only affected backup witnesses, like me. Due to that bug I couldn't produce blocks for a long time, but hardfork 27 came very fast and fixed it.

https://hivehub.dev/witnesses

Until earlier today my witness was, mistakenly, seen as "inactive" because the last block produced was on the Hardfork 26 and over 1 week ago. Now everything is up and running normally.

https://hivehub.dev/b/69055518

By publishing this block the blockchain can see that I am active and my node is working and also I am on the correct version of the software.

Hive an amazing piece of software and the consensus we have allows for fast changes and corrections. Color me impressed.