What is this error?

whan i try login or add data its gives me this error like screen shot below

any help for this ?

It is possible that the IP address mapped to api.backendless.com is cached on the phone. The IP address may change from time to time. I suspect that this is what happened. Could you open https://api.backendless.com in a browser on your device and let me know what you see?

its open
and give me text line
All works! and id number

Do you use our SDK or connect to Backendless via REST?
Do you have a custom domain configured in your app for Backendless?

i think the problem because of diffirent android api level
only old devices show this error

thanks Mark

Hi Mr. Mark,
I have the same problem but I have added custom domain to the app. How can I map this custom domain to the home page of the frontend without showing this message?
Best regards,

Hello @Ahmed_Elagamy

To make it easier to help you, please create a new topic and please describe your problem in more detail.
Describe what you are using (our SDK or REST), what error you get, with what actions.