One page of the site disappeared from serp for a month now

[nira]

Im working on a clients site and been promoting a specific page to a keyword. started to move up the ranks and exactly a month ago on the 19/5 ( on the same day of the last update) updated the main page im working on with new content and published some other new pages on related subjects that all are linking to the main page im working on ( without the same anchor text in the links ) on the same day i found out that because of a technical error the new content was published on 5 other pages of the site and obviously created a duplicate content issue and i removed all the duplicates on the same day , i assume G caught this thing and punished the site for the duplicate content issue but :

when i search the page directly with site:...i can find it.

its been a month since i fixed all issues that i thought could impact the page..no duplicate content on the site. no KW stuffing. no spammy links to the page. everything seems fine now

my question : why is my page not showing ? how long should i wait before giving up and creating a new page .? how come my site has not lost any organic traffic ( apart from that specific page ) ? is it possible to penalize only one page ? can i recover from this at all ?

thanks

[Devanur-Rafi]

Hi, while it is definitely possible for Google to penalize a page or a folder for that matter any section of a website, unless we take a look at the page you are talking about, all that we write will be just shooting in the dark.

Best regards,

Devanur Rafi.

[Er_Maqui]

Have you checked webmaster tools from google? They can give some information to you.