Switch to Prism Launcher . It is a direct fork of MultiMC with better modern features, including a text box where you can paste any custom auth server URL (like Ely.by's Mojang endpoint).
Getting your favorite skins into Minecraft using the launcher and
The search term "MultiMC ely.by" typically arises from a specific desire:
Using ely.by to bypass premium checks on public servers may violate server rules and is against Microsoft's EULA. Use this knowledge responsibly – primarily for skin customization and private server management.