Invalid oauth scope to access this url on mobile version

Invalid oauth scope to access this url on mobile version

We are using Zoho CRM and I receive this error message each time I open the app on my iphone. I also notice that the search results are weak compared to the web version. The web version provides more results upon similar search criteria. Am I missing data on the mobile version? Is there a feature to set the data refresh to automatic? How do I resolve this error message?