Tinder error 500 only occurs to those who use Facebook to login into Tinder and have changed their phone number. If you don’t know the , then you need to follow a simple procedure. Firstly, you need to install the Facebook app on your phone and then update the phone number once again on your Facebook account. After you are done with this, you will be able to login to Tinder again.
To see this working, head to your live site.