really thanks so much for taking your time

yes I am sure , it was weird for me that ask that question , but after that nothings happen

when I had created my wallet I enable 2fas. I had installed 2FAs application and get the code for enter the dogchain.info web site .

now when I want to login it needs the 2FAs code , it just send me to my email just one time , after that each time I want to login , it does not send any thing to my email.
But because I had my 2Fas backup , I restore it to application and now I get code , but when I want to login to dogechain.info , that code does not work and doge chain said in is invalid code!!  and the other site the code was not send to my email

I think , may I restore wrong back up ? an d it is not 2fas for Dogechain? but when I create wallet i save all information and it is for that time

as I said , I Crete new wallet on doge   chain and I get the code easily in my new email and can login easily

it doesn't work on my old wallet and my old email

and I said I have exported encrypted file that I don't know how can I use it ?
for this question:
One thing you did not explain clearly is why or what kind of reason/error you failed to log in, so you better explain it concisely about it.

I did not get any code to my email from dogechain.info, and backup that I have , that i approximately it is for Dogechain , I get code from it but when I fill that code after login to dogechain.info , it doesn't accept it and said : Invalid 2FA token specified.

Hello guys
please help me

 I have received an email from Dogechain.info to transfer fund last week , when I want to login , when I fill my password , for just one time it send me 2FA code to my email , but it was just one time , the it does not send again , then I see a form that I send my name and city but then I could not login finally

then I wanted to try with 2FA.com application, I had back up file and I restore it to get code, but when I want to login to dogechain.info it does not accept the code that I receive it from 2FA application , and said it is invalid code , and it does not send 2fas code to my email too and I can not login to my account at all.

more over i have a exported encrypted file that I don't know how can I use it :the file start with :


salt(+xTuGfX+WWf/Tzb5AYv1TA==) ......

I send email to block.io but no body answer me.

just in case I create new wallet in dogechain but in that one I receive the code in my new email for new wallet