iOS App Problem - You do not have permission to visit this module

iOS App Problem - You do not have permission to visit this module

Whenever I log onto Zoho on my iPhone or iPad it gives me an error that reads, "You do not have permission to visit this module"; however, I can do everything I want without any issues on the desktop version of Zoho. Any ideas as to why I am getting this error on my mobile devices? I am using the free version of Zoho and everything was working fine for me up until about 4 or 5 weeks ago.
 
Please help!