Many, many people have asked about error messages when using mastodon.social.
Mastodon.social is far too large. Its massive size causes errors, and threatens the long term safety of the whole Fediverse.
I strongly encourage people on mastodon.social to move their account to another server.
You can find reliable servers on the official site at https://joinmastodon.org/servers or my own recommended list at https://fedi.garden
Here's a step-by-step guide for moving: https://fedi.tips/transferring-your-mastodon-account-to-another-server/