Using a web browser, go to your account settings. In 'languages' ensure that 'English' is selected. The posts will then be visible to you when you are logged in.
You've made this post in the 'afaraf' language, so you may as well deselect that while you're there if you don't understand it. This of course means that most people here won't see this post, ironically enough.
Also, if folks could stop parroting out the same bullshit 'federation delays' answer to every question, that'd be great. It's not that. It's actually very rarely that (even if you were the very first person to discover that community, which you weren't, it'd only take a refresh to resolve it).
Okay. Well, if it's fixed, that's all that matters, I guess. I don't understand this desire to downgrade other people's answers into speculation, but it's not like this is the first time it's happened.
Language selection with Lemmy is pretty unintuitive, so others may be interested to know that OP is technically incorrect here. Despite what the UI says, it's actually impossible to deselect 'undetermined'. Whatever frontend you're using might let you, but the backend will just ignore it. I don't use this account much, but I used it here to make a very deliberate decision to send my earlier response using 'undetermined' as the language, so that OP would definitely see it, and the fact that they clearly did demonstrates for itself that what they're suggesting is nonsense.