Hi Ree J,
Thanks for posting your question here. The "drowned" error happens when a saved login information on your Nintendo Switch is corrupted or fallen out of sync in the server. Please follow this to fix it:
First, clear the saved account sign‑in data in Minecraft’s Profile settings, restart the game, and sign in again using the code at aka.ms/remoteconnect. Fully power off the Switch, wait one minute, then turn it back on; also update Minecraft through the software menu, test your internet connection to ensure a good NAT type, reset your Microsoft password if needed, and verify Xbox Live service status.
Let me know if you have questions, I am here to help.
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Thanks,
Jobelle C.