setRole doesn't work

export async function setAdmin(id: string) {
    const updatedUser = await authClient.admin.setRole(
        {
            userId: id,
            role: "admin",
        },
        { headers: headers() }
    )

    console.log("User is now an admin", updatedUser, id)
}

User is now an admin { data: null, error: { status: 0, statusText: '' } } ZFgfmRxHcP8Exszk07b9CZOsteXMiQ62