Check your Masternode statuses. Upon restart, the masternode tries to resume but because of a network protocol change will get "not-capable masternode: protocol mismatch".
on masternode you can check status with: ./mogwai-cli masternode status (or run masternode status in debug window)
on controller you can check statuses with: ./mogwai-cli masternode list-conf (or run masternode list-conf in debug window)
Retrigger masternode start from your controller wallet.