A few days ago, Let’s Encrypt published information about a bug in their system. The bug meant that a number of certificates (far from all) would have to expire earlier than expected on 5 March, or stop working properly.
We have already fixed it so that the affected certificates on our servers (all services where our control panels install the certificates) are renewed and not affected by this bug. So you can rest assured that your Let’s Encrypt certificates will continue to work automatically and painlessly.
For more information about the bug, please visit Let’s Encrypt.