When I submit the any article then it does not submit.

Sounds like the article hasn't been accepted during the moderation. If you have got messages concerning the article, read them through and try to make requested modifications.

My understanding is that you also should have received info if the article is reported for example because of formatting problems, missing content, links outside CodeProject or similar. Take this info also into account when making changes to the article.

The moderation process is important phase ensuring that the article follows all the guidelines CodeProject. For example an incomplete article is not going to benefit anyone, least of all the author because the likeliest outcome is that the article gets only downvoted.