Be sure to run the lastest release of the Ubiq software, any earlier releases will not run on with the network.

The fix was released before it and running on pools before it effected normal users.
There was no hardfork or network downtime as a result of this issue, pools and resource nodes are functioning normally.

Version v1.5.7 Main

https://github.com/ubiq/go-ubiq/releases/tag/v1.5.7