I am trying to troubleshoot a Playmaker issue I ran into after installing this asset: 
https://assetstore.unity.com/packages/templates/systems/urban-traffic-system-2018-2-89133Playmaker throws a bunch of errors (see attachment).
I have narrowed it down to this script: Assets\UTS_PRO 2018.4\Scripts\Street And Concert\PeopleController.cs
If I delete this script the playmaker errors go away:
using UnityEngine;
using System.Collections;
public class PeopleController : MonoBehaviour
{
   [HideInInspector] public float timer;
   [HideInInspector] public string[] animNames;
    [HideInInspector] public float damping;
    [HideInInspector] public Transform target;
   void Start()
   {
      Tick();
   }
   void Tick()
   {
      timer = 0;
      int randomAnim = Random.Range(0, animNames.Length);
      SetAnimClip(animNames[randomAnim]);
      timer = Random.Range(3.0f, 5.0f);      
   }
   public void SetTarget (Vector3 _target)
   {
          Vector3 targetPos = new Vector3(_target.x, transform.position.y, _target.z);
      transform.LookAt(targetPos);
   }
   void Update()
   {
      if(timer >= 0)
         timer -= Time.deltaTime;
      else
         Tick();
        if(target != null)
        {
            var lookPos = target.position - transform.position;
            lookPos.y = 0;
            var rotation = Quaternion.LookRotation(lookPos);
            transform.rotation = Quaternion.Slerp(transform.rotation, rotation, Time.deltaTime * damping);
        }
   }
   public void SetAnimClip(string animName)
   {
      GetComponent<Animator>().CrossFade(animName, 0.1f, 0, Random.Range(0.0f, 1.0f));
   }
}
Any suggestions?
Thanks.