When Google indexes your landing page, it uses your page's metadata and body text to populate the listing. If your page has no metadata, Google will search your page for the most important text based on headline hierarchy (<h1>, <h2>, <h3> etc) and use that instead. Please Correct the Following Errors is some text in your page's backend tagged as an <h3> headline.
If your Google listing says Please Correct the Following Errors, it means that your page contained no metadata or 'important' text when it was indexed and so Google defaulted to that message.
To address this issue, load your page in the editor and click the Page Properties tab and navigate to Title & Meta Data.
Fill in the appropriate information then save and republish your page.