couldn't use multiple user with config json file

[RilusMahmud]

I'm using this with docker and updated config file for multiple users,
but it seems the first user can connect but the rest users couldn't connect.
can anyone help me with this, or just tell me what am I doing wrong?

Here is the config file,

{
  "version": 1,
  "passive_transfer_port_range": {
    "start": 2122,
    "end": 2130
  },
  "accesses": [
    {
      "user": "rilus",
      "pass": "@rilus",
      "fs": "os",
      "params": {
        "basePath": "/tmp"
      }
    },
    {
      "user": "rafi",
      "pass": "@rafi",
      "fs": "os",
      "params": {
        "basePath": "/tmp"
      }
    },
    {
      "user": "sakib",
      "pass": "@sakib",
      "fs": "os",
      "params": {
        "basePath": "/tmp"
      }
    }
  ]
}