cant find AP Android

[nuuk00]

Hello,
I want to programm a App to connect to my Raspberry Pi but I only get the Popup Window with searching device but It cant find it. I checked the SSID etc and everything is right. After a week of trouble shooting I dont know where to look to find a solution. Pls Help.

void connectToWifi(String SSID, String? BSSID) async {
if (state == false) {
state = true;
message = SSID;
showToast(context);
bool isConnected = await WiFiForIoTPlugin.connect(
SSID,
security: NetworkSecurity.NONE,
joinOnce: true,
withInternet: false,
timeoutInSeconds: 30,
);
if (isConnected == true) {
message = 'Connected to Raspberry Pi';
showToast(context);
setState(() {
instruction = 'Test';
});
}
} else {
state = false;
}
}

AndroidManifest_xml.txt

build.gradle.txt