Google Search Console – AMP Schema

Hi,

Error in schema.org NewsArticle

I’m not really sure why we get this error. When I use validator or #development=1 everything seems ok.

Ex: https://www.viwoinc.com/moving-from-outlook-to-gmail/amp/

{
“@context”:”http:\/\/schema.org”,
“@type”:”BlogPosting”,
“mainEntityOfPage”:”https:\/\/www.viwoinc.com\/zoho-business-card-scanner-app-for-iphone\/”,
“publisher”:{
“@type”:”Organization”,
“name”:”ViWO”
},
“headline”:”Zoho Business Card Scanner App for iPhone”,
“datePublished”:”2013-05-11T16:22:34+00:00″,
“dateModified”:”2015-11-19T19:03:06+00:00″,
“author”:{
“@type”:”Person”,
“name”:”George”
}
}

Could you help me with this and give me a direction to look?
Thanks for your time

https://www.ads-software.com/plugins/amp/