Nope! Not issues with your Site.
Google made a strong update in March!
As said; they disabled the Submit to Google or Fetch as Google feature in order to lay out spammers abusing the system.
This issue is been fixed a bit.
All you need do is write long form contents and do your regular pinging!
Within 24hours, all should be set.
The algorithm is reduced a bit.
But for your old contents not indexed i recommend you either change the permalinks or re-write it!