Question One of my apps is blocked by the system and unable to access WLAN

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New member
Mar 25, 2023
My WIFI network is fine and all other apps on my S23 works properly but only this one app can't use WLAN network. It seems to have been blocked somehow and I don't know how to unblock it. I looked every everywhere and can't find a fix. This app is developed by myself and is important to me. The app name is Luo Note. It works properly on my other android devices and only has this problem on my newly purchased S23. Here is a shot of the toast message of the system when I open this app: