we detected network instability caused by a high number of nodes running old versions of our software.
It's very important to update your wallet software if you are running a version older than 4.0.5.
Download available at:
For NavPi Users, while no other update alternative method is released, users can access the device using an attached display or SSH connection if available and perform the following command to update to last version:
wget -O - http://navcoin.org/files/update-navpi.sh | bash