Domain mapping error!

I keep getting a domain mapping error on my site and I can’t login. I recently switched hosting from GoDaddy to BlueHost. I’ve been messing with my site for nearly a week and keep having the same problems. I don’t know how else to check. I keep having redirect and mapping errors and I don’t understand why. I changed the nameservers to BlueHost but I honestly don’t know how else to troubleshoot. I really could use some help. 🙁