DateTime daily bonus script works in editor but doesn't in build

Hi, I want to build a simple daily bonus system. It's the first scene when you launch the game. It is also the only script in the scene. I store DateTime as a string, after i convert it toBinary(I've seen this approach on the forums). The problem is that it works fine in editor(panel shows once per day), when I build it to my phone it shows there every time the scene is active. UI texts which I use to print out the possible prizes are stuck on 'New Text'. Because I print out the text very early in the code I suspect the bug is above where I extract the date from memory. Thanks for help :) public GameObject panel; public Image[] imageArray; public GameObject panel; int bonuslvl; public int[] prizeArray; public Text[] textArray; // Use this for initialization void Awake() { long lastAccess; DateTime lastAccessDate;

         if (PlayerPrefs.HasKey("lastrundate"))
         {
             lastAccess = Convert.ToInt64(PlayerPrefs.GetString("lastrundate"));
             lastAccessDate = DateTime.FromBinary(poslednjipristup);
         }
         else
             lastAccessDate = new DateTime(0);
         for (int i = 0; i < 5; i++)
             textArray[i].text = prizeArray[i].ToString();
         if (PlayerPrefs.GetInt("firstrun") == 0)//don-t want to show the ad first time user launches the game
         {
             panel.SetActive(false);
             PlayerPrefs.SetInt("firstrun", 1);
         }
         else if(lastAccessDate.Day == DateTime.Now.Day)
         {
             panel.SetActive(false);
         }
         else
         {
         
 
             if ((DateTime.Now - lastAccessDate).TotalDays < 2)
             {
                 bonuslvl = PlayerPrefs.GetInt("bonuslvl");
                 if(bonuslvl < 4)
                     bonuslvl++;
                 
             }
             else
                 bonuslvl = 0;
             PlayerPrefs.SetInt("bonuslvl", bonuslvl);
             
 
         }
         PlayerPrefs.SetString("lastrundate", DateTime.Now.ToBinary().ToString());
         for (int i = 0; i <= bonuslvl; i++)
             imageArray[i].color= new Color(0.5f, 0.5f, 0.5f);