adding cassandra node in new data center

[Kassav]

Hello,

I'm adding new datacenter to a multiple datacenter infrastructure.

Now i'm adding 3 cassandra nodes using steps in the documentation.

I'm encountering this error on 2 new nodes:

WARN [GossipStage:1] 2024-07-08 11:04:02,205 TokenMetadata.java:196 - Token 56713727xxxxxxxxx42 changing ownership from /x.x.x.x to /y.y.y.y

And after this an existing node was removed (which is not what was expected) an the new host is added with it's new datacenter

The third host, i'm getting this error; 

INFO [main] 2024-07-09 11:33:04,896 StorageService.java:1138 - JOINING: getting bootstrap token
ERROR [main] 2024-07-09 11:33:04,901 CassandraDaemon.java:399 - Fatal configuration error
org.apache.cassandra.exceptions.ConfigurationException: Bootstrapping to existing token 11342xxxxxx256070685 is not allowed (decommission/removenode the old node first).

Any recommendations to add new cassandra nodes in a new datacenter ? did i missed a step ?

Thank you