The most likely reason for this is that you created a new account instead of logging in to your old one.
In that case:
1) Log out of the application by going to your "Account" area. You can also click here from your phone.
![](https://files.helpdocs.io/n0njida9x8/articles/shc3pfavyz/1583304460600/compte-i-os-e.png)
2) Log in with the account you used to use (with the same email).