My account was freed from blocked , and I recently asked a question and got positive votes, but my account went blocked again.
This link to Meta Stack Exchange pretty much covers all we can tell you. It includes the reasons why the automatic bans happen; how to get unbanned; etc.
There's nothing a moderator or other users can do to directly help you with an automatic ban, and it looks like your account isn't manually suspended by a moderator, so you just need to improve the existing questions/answers you have to get unblocked.
BTW, deleting your questions/answers does not help. That actually makes it more likely that you will be question/answer banned, especially if you're in a "marginal" situation like yours.