Inquiry about support for BN curves

[Lullabying]

Can the computation on BN curves be achieved by modifying the curve parameters?
I tried to perform computations on the BN curve using this library by modifying the curve parameters. The specific code is as follows:

ResourceManager rm = new ResourceManager((short) 254);
ECCurve curve = new ECCurve(BN.p, BN.a, BN.b, BN.G, BN.N, BN.k, rm);
Acc = new ECPoint(curve);
Acc.randomize();

However, when running the second step, an error occurs and the error code 6A 80 is returned.
What modifications should I make, or what issues should I pay attention to?