I have no idea how can this exact picture happen. Unless you block the IP for lemmy.ml entirely, I do not understand what is happening here. It could be that deleting your account somehow poisoned your browser cache and now everything on lemmy.ml fails to load because of that. You can try to clear it. Otherwise, I am clueless. Sorry :) You can try to create an issue to ask for instruction from more knowledgeable people, if you wish.