Email Alert for Errors in PI

I followed this step by step process:

XI: Alerts - Step by step

I tested it in se38 - RSALERTTEST and after executing it works, but it wont work if it gets a red flag in SXI_MONITORING.

is there something wrong with my configuration?

the subscription page inside "alert inbox" has a BSP Error and returns this error "BSP exception: Cannot start application sap/alertsubscription. Use transaction SICF to create application node. gsknoten an."

I checked the SICF and can't find ALERTSUBSCRIPTION. Do I need a basis to add this?

Thank you.

Im using SAP PI 7.1 sp08