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Is there something about Mastodon and the Fediverse that you need help with?
Reply to me or send me a DM and I'll try to help if I can, or put you in touch with someone else who can help.
Don't worry if a question seems silly or obvious! The idea of this account is to especially help new people.
@feditips sometimes when I try to add an image to the post it won't upload and gives me a 502 error. I don't know what's the difference between the images I succeed in uploading and those that don't
It's nothing to do with the images, it's because the server you are on (mastodon.social) is too large and too overcrowded.
The way to solve this would be to move to a smaller server. You'll still be able to keep your follows and followers, but you will probably see fewer error messages.
@feditips thank you for the quick answer!