Can't take Eldritch Invocation: Agonizing Blast with Spell Sniper(Sorcerer): Eldritch Blast

I have the Feat Spell Sniper (Sorcerer) which allowed me to add Eldritch Blast as a Cantrip. I was trying to add Agonizing blast but it isn't being displayed as an option of the Eldritch Invocations I can take with the help of Eldritch Adept Feat.

Please Fix. Thank you.

This is working as intended, as specified in the feat:

If the invocation has a prerequisite of any kind, you can choose that invocation only if you’re a warlock who meets the prerequisite.

Because Agonizing Blast has a prerequisite, only warlocks can take it with the feat.