Unable to sign in Refresh Token Fetch Nothing was Received

Unable to sign in Refresh Token Fetch Nothing was Received

I reset my ZOHO mail password last night and therefore signed out of all devices. 

When I went back to sign into the ZOHO MAIL IOS app, it came back with the following error typed exactly like this

"Unable to sign in RefreshToken Fetch Nothing was Received." 

Anybody know how to fix this issue? I haven't been able to find any former submissions with the same error. See attached photo