Contextual information from the Bitgreen team, below:

For a detailed description please refer to this: https://hackmd.io/@t9B1coeOQ1GlARb2EZRx3g/Hy0mnACdo

The bitgreen parachain was upgraded from a shell runtime to our latest runtime code at block 191202.

The upgrade executed without issues and the parachain continued to produce blocks. The upgraded parachain runtime introduced a couple of new pallets, the pallet-parachain-staking among them. This new pallet was responsible to assign new validators to session pallet and by extension the aura pallet. After the runtime upgrade, when a new session was triggered, it set the new authorities to an empty set since the pallet-parachain-staking was not set with any initial values.

We have explored all other solutions and after discussion and advice from Parity devs have created this proposal. Our humble request to the TC is to fastrack this proposal, this is purely a technical rollback since our chain has no user transactions or funds yet. We would like to distribute token rewards as soon as possible. Similar parachain resetshave been fastracked by the TC in the past and we request that our proposal be fastracked aswell.

Proposal hash: 0xfc0c33d0c0ae08d940fddadb11e239710da69b8660eaae7f77ea102a331e4ebe

Preimage is submitted.