Given the limited information you have provided, I cannot give a definitive answer. What I can say is that, having looked at your account, you haven't asked any prior questions with these credentials. Had you done so, even deleted questions would be visible to you, and to users with sufficient reputation (and also to moderators and SE staff).
Presumably then, the questions you are referring to were asked with a different account (or perhaps accounts)? If that is the case, the question becomes has that account (or have those accounts) previously been subject to sanctions by any site on the SE network?
You say that your questions are "frequently" closed elsewhere on SE (although this will not have been "for no reason", as you claim. A reason is always given when questions are closed. You may not agree with those reasons, but the reasons will be stated). That may explain your problem.
If your account(s) have been suspended/deleted/destroyed for troll-like behaviour, or for spam, or for any other reason, then I would speculate that there are (presumably) automatic systems in place that will prevent you from posting again using those credentials.
[This is only speculation on my part: moderators are (quite rightly) not privy to the details of any systems like that. However the existence of such systems seems probable to me].
The solution here would appear to be straightforward. Just register your account and post your questions from that account. That way, you will receive the reputation from well-asked, on-topic, questions.
Obviously we would prefer that you refrain from asking questions that are off-topic, even when those questions are not, in themselves, particularly controversial.
If you cannot do this for some reason (for example because you are suspended or banned from the SE network), then you will probably have to either wait until you are able to (e.g. when your suspension ends), or find somewhere else to ask your questions.