URL link to form not working

URL link to form not working

I created a webpage with a 3-button menu. Every button links to 3 different forms in my zoho creator app (using the URL pattern for example: " https://preapp.zohocreator.com/<my user name>/<my app name>/#Form:<myform name>"
This menu page works perfect in the desktop version, and was working OK within the mobile app (which we use to scan QRCodes), but now when you click any of the menu buttons I got a message "An error occurred"... I emphasize that this happens only with the zoho creator app on my iphone.
Please help I been trying with many different options in the URL to connect with the forms and none worked