We cannot help you further until we can log into the Admin Dashboard for http://growinglove.club
The issues you are experiencing logging in is not related to the theme.
It is your installation of WordPress or the hosting account.
When I try to reset your password for user peter7, I got an error message.
That is not normal, I have ever seen this error message before.
Please provide us with the correct admin username and password for this site, then we will be able to have a look.
I would also suggest contacting your hosting company about the mail error when trying to reset your password.