Token invalid signature

I know a lot of people had that problem but I still can’t solve mine,
When I’m using the create token api, the signature token that is used is in the lora-app-server.toml right?
Because on, I’m trying to generate a token using that token signature, but when I’m using it on localhost/api, I have a token invalid signature problem.
(I already tried to type-in the secret key before/after the payload, tick/untick the secret key box etc… so please don’t redirect me to these links I’ve read them all already)