I'm have issue with detect face mask

[doanbh]

I clone project from git but It's not working to detect Face Mask .
I see log
E/flutter (32441): [ERROR:flutter/lib/ui/ui_dart_state.cc(186)] Unhandled Exception: PlatformException(Failed to run model, Interpreter busy, java.lang.RuntimeException: Interpreter busy E/flutter (32441): at sq.flutter.tflite.TflitePlugin$TfliteTask.<init>(TflitePlugin.java:450) E/flutter (32441): at sq.flutter.tflite.TflitePlugin$RunModelOnFrame.<init>(TflitePlugin.java:545) E/flutter (32441): at sq.flutter.tflite.TflitePlugin.onMethodCall(TflitePlugin.java:117) E/flutter (32441): at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:233) E/flutter (32441): at io.flutter.embedding.engine.dart.DartMessenger.handleMessageFromDart(DartMessenger.java:85) E/flutter (32441): at io.flutter.embedding.engine.FlutterJNI.handlePlatformMessage(FlutterJNI.java:818) E/flutter (32441): at android.os.MessageQueue.nativePollOnce(Native Method) E/flutter (32441): at android.os.MessageQueue.next(MessageQueue.java:379) E/flutter (32441): at android.os.Looper.loop(Looper.java:144) E/flutter (32441): at android.app.ActivityThread.main(ActivityThread.java:7529) E/flutter (32441): at java.lang.reflect.Method.invoke(Native Method) E/flutter (32441): at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:245) E/flutter (32441): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:921) E/flutter (32441): , null) E/flutter (32441): #0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:581:7) E/flutter (32441): #1 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:158:18) E/flutter (32441): <asynchronous suspension> E/flutter (32441): #2 Tflite.runModelOnFrame (package:tflite/tflite.dart:73:12) E/flutter (32441): <asynchronous suspension> E/flutter (32441): #3 _MyHomePageState.runModel (package:flutter_tflite/main.dart:58:26) E/flutter (32441): <asynchronous suspension>