Get more than 100 tweets Postman/Twitter API v2

I'm using Postman and Twitter API v2 together, to pull data for a paper. I've loaded the "Get more than 100 tweets" library, but it's pagination doesn't seem to be working.

I keep getting this error (listed below, in bold):

"errors": [
    {
        "parameters": {
            "pagination_token": [
                "b26v89c19zqg8o3fpz8mukx3mf6m7ag90u7sjx2xy61kt"
            ],
            "next_token": [
                "1"
            ]
        },
        **"message": "At most one of [pagination_token, next_token] can be provided."**
    }
],
"title": "Invalid Request",
"detail": "One or more parameters to your request was invalid.",