Cs API business fail how to resolve
Need a lot more info than that. What specific App and what is the exact error, is it on WiFi or Mobile Network or both.?
Are you on a work profile or normal profile.?
What have you tried so far to fix the issue?
Oneplus 8T uses Android 11 - a pretty new OS and maybe your app - whatever it may be - is not fully compatible till now.
Get in touch with the app developer.
We would like to check this further and have got in touch with you via personal conversation for more details.
Contact customer support
Is one plus. Supporting This app. Read a app info. Some apps Are useless. Check it again. Then call support.
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by Jade D., 2021-04-09