As far as I know, if 5 of your consecutive articles are rejected, your article posting access will be suspended. Also, your article posting access will be suspended even if one article is in pending state. So, I think the last one of your article is in pending state and therefore your article posting access is rejected for now. I suggest you to edit it as per the editor's suggestions. In case your last article is already approved, the restricted access may be due to multiple rejections previously. Post quality content in different sections and earn the trust of editors. Best of luck.
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