Here's is the full e-mail. Please reply what will be the best option. Thank you very much!

Based on some more research we have the impression that your site is not using the Recipe Maker system to show the pages, 
But that a plugin with from Pensi is handling the recipes. 

Can you check with your technical partner if you are indeed still using the WP Recipe Maker plugin or if a Pensi recipe plugin is being used? 
(The source code of your webpage indicates the use of a “Pensi" plugin)

See also the attachments, 
1 showing a recipe from your site and the underlying code (with PENSI mentioned)
The other showing a recipe from a recipe Maker client and the underlying code. (WPRM_ mentioned)

And a bit more technical. 
The app uses an API to fetch the data and in the Json of that API we do not see the WPRM data that we expect to see. 

if you can ask you technical partner if they can confirm that you are indeed using Recipe Maker AND if they can make the Json accessible to us, that would help us. 

Looking forward to hear from you what the technical partner said. 

kind regards 

https://alessandrasfoodislove.com/wp-json/wp/v2

Thanks. Who is the plugin author? Please send me his email. Thanks.

Hi There,

I am working with an application developer for my food channel and the question they have is if I am using Recipe Maker AND if they can make the Json accessible to us, that would help us. 

Please help.

Thanks.