i cannot create the masternode, when i select stat i get this error

Alias: MN1
Failed to start masternode.
Error: Invalid IP address 138.--.152.10, masternode=366c947edac935fe363fb50a6869---c0ca4f22fc596261d55f0aa16cdfa94c

( i replaced some number by --   -- , for safety

i followed the instruccions that can be found on youtube  MNitra Tutorial - Nodium ($XN) Masternode Setup Guide from Start to Finish

i got stuck in the min 5.22