Please be aware that all exchanges have been advised by the Gridcoin dev team to stay in maintenance mode until further notice. Once it can be verified that the exchanges won't have any issues, they'll start their wallets back up. There's no need to create any support tickets at exchanges at this time. Your GRC is safe.
There is currently no ETA, but the dev team is actively testing a new release.
https://www.reddit.com/r/gridcoin/comments/7wn5a7/exchanges_in_maintenance_mode/
Update: Exchanges are in maintenance mode per developer request. Work is progressing and testing continues. Everything is safe. We will keep you up to date as information becomes available.https://t.co/TuSwWNOiW3
GridcoinNetwork (@GridcoinNetwork) February 15, 2018