Trigger prototype isn't on normal triggers

[userno]

Hi,
i created a trigger prototype but isn´t on the triggers area.
How can i add that prototype trigger in the triggers that are currently working?

[cyber]

Your trigger is created, but it has somekind of issue . Click on that red "!", find out what's the issue, and fix it.
It also has yellow "!", which would indicate, that this item/trigger is not discovered any more and will be removed soon...

[dimir]

Prototypes aren't under "Host -> Triggers", they are under "Host -> Discovery -> [Discovery rule] -> Trigger prototypes".