Yuppp that's what I meant, the hardfork.
What caused it?? Generally speaking, there could be a conflict between community and the development team...
The hardfork is an update to the protocol, it is not about conflict between the community and the team.
The reason for the hardfork was ERC20 tokens that were not migrated in time to the mainnet, with it the users now can claim their tokens that were not migrated in time or sent the token by mistake to the migration contract.