No Encoder found for play.api.libs.json.JsValue

Question

I have case classes like these

 case class PrimeraRemoteCopyConfig(
    links: Option[Vector[JsObject]] = None,
    status: Option[Vector[JsObject]] = None,
    targets: Option[Vector[JsObject]] = None,
    groups: Option[Vector[JsObject]] = None,
    groupTargets: Option[Vector[JsObject]] = None,
    groupVolumes: Option[Vector[JsObject]] = None)


object PrimeraRemoteCopyConfig {
    implicit val _format = Json.format[PrimeraRemoteCopyConfig]
}

case class PrimeraConfig(
   systemUid: String,
   tenantId: String,
   systemWWN: String,
    remoteCopyConfig: Option[PrimeraRemoteCopyConfig] = None)

object PrimeraConfig {

  implicit val _format = Json.format[PrimeraConfig]

}

And I have spark dataset that uses state management, using flatMapGroupsWithState.

However I am getting

 22/05/10 17:07:48 INFO BlockManager: Initialized BlockManager: BlockManagerId(driver, 192.168.0.199, 53277, None)

Exception in thread "main" java.lang.UnsupportedOperationException: No Encoder found for play.api.libs.json.JsValue - map value class: "play.api.libs.json.JsValue"

- field (class: "scala.collection.Map", name: "underlying")
- array element class: "play.api.libs.json.JsObject"
- option value class: "scala.collection.immutable.Vector"
- field (class: "scala.Option", name: "links")
- option value class: "model.PrimeraRemoteCopyConfig"
- field (class: "scala.Option", name: "remoteCopyConfig")
- root class: "model.PrimeraConfig"
at org.apache.spark.sql.errors.QueryExecutionErrors$.cannotFindEncoderForTypeError(QueryExecutionErrors.scala:1000)

I tried defining encoders for JsObject using Encoders.product[JsObject] However it does not work. What am I doing wrongly here