Error failed to change state for partition

[Neo1780]

Hello,

I allways get the error:
Controller xxxx epoch xx failed to change state for partition ___consumer-offsets-40 from Offlinepartition to OnlinePartition(state.change.loger)
kafka.common.StateChangeFailedExeption: Failed to elect leader for partition __consumer_offsets-40 under strategy OfflinePartitonLeaderElectionStrategy(false)

I´m totally new to kafka, and at the moment i don´t see the wood because of the trees :)

[Neo1780]

I found out, that none of my topics has a leader! Is it possible to do this manually over the cli?