The site says we are no longer accepting questions from this account when I try to submit a question in physics section. I don't even have a bad reputation. All I asked was one single question which got me two upvotes. So I don't even know why I'm being targeted or something like that.
You have been subjected to one of several automated bans that are active on the network. These bans are temporary, but we can't tell you how long they will last.
We can suggest that you follow and read the links in the message you get when you attempt to post a question.
I can tell you about any deleted question associated with your account if you wish, however that is something that will be in public view. Just comment here asking.