I see a couple of reports against you for plagiarism so that's probably why.
I did it without knowing. Then I apologized. Will you fix my account now?
As you have already announced, it was your account that got banned because of such a mistake that you did not know. I checked your banned account, which is not that old, and since you have already created a new one, why not keep using this one? And don't repeat such mistakes again, so that you don't get banned again. Also, keep in mind that making multiple accounts is not considered a good act on the forum, but as you have already announced and mentioned your previous account, it's fine now.
Also, this time, I would recommend that you to visit this section
Beginners & Help. In this section, you will get a lot of information that will help you not to get banned again. Other than this, I have seen some replies in this same thread where users have already shared some useful and informative topics. Visit them as well.