Custom Function in new API after 14900

Custom Function in new API after 14900

Hello,
I've got this message when entering a cf that we used to change status on reply.

This custom function is using an outdated sdp.admin.leftpanel.helpdesk.notificationrules.hom API version. We recommend updating it to the latest API version.

I can send this custom funtion, because right now when I try to reply on ticket it tells me that:

by System
Workflow : Notification Custom Triggers. Rule Group : Main, Rule : Update Status
Sub Entity ID : #1429435
Result : Failed
Message : Error at line : 16, Value is empty and 'get' function cannot be applied

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