My node was removed from the list

Hi, i have a node. It was working well, today i realice that the node with ip disappear. what should i do? why was it removed?

Did you just update to 4.2?

Yes, the error was that i set up a new node and used a txid that i had used in the node that was running. In the qt the command masternode_outputs does not give the txid in order, so you have to pay attention and check which of the outputs you got has not been used yet