BG EET: "does not exist" when checking romance status with clua.

I am playing a heavily modded game with tons of fresh, romanceable NPCs. Since some of them have restrictions I wanted to check if my PC is even eligible before I bother inviting them into the party.
C:GetGlobal("NameRomanceActive","GLOBAL")
More often then not it just states "does not exist". What exactly does that mean? Did I get the name wrong? I'm pretty sure that I got at least the vanilla NPCs like Viconia right. Or does that mean that I'm not eligible at all? Or does it mean that not enough time has passed for any romance to develope?
Any clarification would be appreciated.
C:GetGlobal("NameRomanceActive","GLOBAL")
More often then not it just states "does not exist". What exactly does that mean? Did I get the name wrong? I'm pretty sure that I got at least the vanilla NPCs like Viconia right. Or does that mean that I'm not eligible at all? Or does it mean that not enough time has passed for any romance to develope?
Any clarification would be appreciated.

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Edit: Little correction to not tempt confusion. Of course I had invited them into the party before I checked. It's a matter of whether or not I should keep them.