Validators can suffer from “Slashing”, a punishment for their bad behaviors, such as double sign and/or instability. Such loss will not be shared by their delegators.
Slashing is a punitive function that is triggered by a validator ’s bad actions. Getting slashed is losing self delegation of a validator. Validators will be slashed for the actions below:
Going offline or unable to communicate with the network.
Double signing. If a validator node tries to split the network by signing two different blocks and broadcasting them, it will be removed from validator set definitely.
minimum self-delegated amount: 10000BNB
Unbonding time: 7 days
offline Unjail fee: 1BNB
offline Jailed time: 2 days. A validator can only unjail 2 days later after it has been jailed
offline slashing amount: 50BNB
Double-sign slashing amount: 10000BNB
TLDR: Ankr fcked up somewhere and got punished by the network. They won't make money for at least 2 days and maybe you lost a percentage of your BNB (a very small and unnoticeable one, though).
You can undelegate, but that takes 7 days (according to the same page).