If you have received the message in Google Search Console or for the well-weathered SEO guys Google Webmaster Tools then you need to read this:-

https://support.google.com/webmasters/answer/7440203#submitted_but_noindex

Submitted URL marked ‘noindex’: You submitted this page for indexing, but the page has a ‘noindex’ directive either in a meta tag or HTTP header. If you want this page to be indexed, you must remove the tag or HTTP header.

The Message Submitted URL marked ‘noindex’ is distressing to read.

The issue in the above example is small but what if you get:-

Well we have spent a few hours looking different sites with different plugins for in WordPress when companies have asked for our help and always achieved success in fixing this problem.

The problem is that each time the issue has slightly different:-