Unable to Subscribe to a Signal

 

I am using a demo account connected to MetaQuotes-Demo.

 

When I try to subscribe to a free signal, it asks me for my username and password.  No problem there.  But then on the next screen it asks for the MQL5 password.  I don't have an MQL5 password.  I tried the password assigned to my demo account, but that did not work either.  Please help! :-)