Online cic account msg does not matter, what matters the most is the gcms notes. They should have marked down the reason on the last few pages where shows analyst's notes. Without that part, we can't help you. The reason written there is the reason why you are in review required, what you can do is to upload docs that can strengthen your case.
Review required does not necessarily mean rejection, but there is chance. The review officer may or may not ask for additional docs from you, they may reject you without asking for additional docs if they feel your working experience or NOC isn't legit. That is why I'm trying to explain that you upload additional docs without them asking through CSE, in order to support your case to avoid rejection or delay.