Nexusnemesis

Hi! I just merged my account from Red, since I haven't played since 2016 and wanted to drop by again. But when I try to login to Silver, it says invalid username or password, while logging in to Gold works just fine and just made a character there. Am I missing something before I can use my stuff from Red on Silver or what is wrong here? Sorry if I wasn't supposed to make a thread here, but I tried looking around and reading threads and nothing seemed to help this specific issue.