How to log in to MQL5 OpenID account on MT4?

[かつみん]

I bought an indicator (review candle chart for mt4).

When you try to install, you will be asked to log in to the Mt4 optional community.

The following two are required to login

1. Login
2. password

However, since I purchased the product by logging in with OpenID (a Google account), I do not know what "password" and "login" refer to.

Also, even if you try to register with the same med, you can not register because it says "It is already registered."

Even if you try to enter your Google account's med and password, it does not respond.

I would like to somehow log in and install the product, but if you have installed the indicator with OpenID, it would be nice if you could teach me the solution.

[Sergey Golubev]

Your login is maribou
Your password is your forum password.
https://www.mql5.com/en/users/maribou 

[Sergey Golubev]

Where can I see my purchases? 
https://www.mql5.com/en/forum/9950/page70#comment_2564931  

How to Install an Earlier Purchased Application
https://www.metatrader5.com/en/terminal/help/market/market_buy