Tienes que hacer el merge de cuentas y elegir qué progreso de qué cuenta quieres mantener. Te paso los links aquí:
If you can't log into Silver Server, you probably need to merge your Red & Blue accounts. You can merge them in the dashboard, make sure to select the right server as your main server. https://pokemonrevolution.net/dashboard/ If you're still unable to log into Silver after merging your account, you'll have to reset your password on the dashboard. For more info about the merge and about the errors that might occur with it, take a look at the following link: https://tinyurl.com/PROMerge
Sorry for the inconvenience.
Blue and Red server got merged into Silver Server, but people who was playing in those servers have to merge their account to play on silver server with their progress on those servers. This merge can be done through the DASHBOARD, please make sure you merge your account from RED SERVER since was your main server.
If you would like get more information of how to merge, why this merge was done and more just have a look to our guide HERE.
Remember, sometimes when you merge your account from Red Server or Blue Server your password gets unsynchronice and you have to reset the password through or option FORGOT PASSWORD to be able to log again on silver server.
Please, do not hesitate in ask if you continue having doubts.
Have a great day,