Ошибка при запуске приложения kivy на андройде

При запуске приложения на андройд, после presplash скрина оно вылетает

07-26 23:34:54.325  7983  8984 I python  : Run user program, change dir and execute entrypoint
07-26 23:34:54.498  7983  8984 I python  : [INFO   ] [Logger      ] Record log in /data/user/0/com.spammer.app/files/app/.kivy/logs/kivy_21-07-26_3.txt
07-26 23:34:54.498  7983  8984 I python  : [INFO   ] [Kivy        ] v1.11.1
07-26 23:34:54.498  7983  8984 I python  : [INFO   ] [Kivy        ] Installed at "/data/user/0/com.spammer.app/files/app/_python_bundle/site-packages/kivy/__init__.pyc"
07-26 23:34:54.498  7983  8984 I python  : [INFO   ] [Python      ] v3.8.1 (default, Jul 26 2021, 11:05:23) 
07-26 23:34:54.498  7983  8984 I python  : [Clang 8.0.2 (https://android.googlesource.com/toolchain/clang 40173bab62ec7462
07-26 23:34:54.499  7983  8984 I python  : [INFO   ] [Python      ] Interpreter at ""
07-26 23:34:55.322  7983  8984 I python  : [INFO   ] [Factory     ] 184 symbols loaded
07-26 23:34:55.584  7983  8984 I python  : [INFO   ] [Image       ] Providers: img_tex, img_dds, img_sdl2, img_gif (img_pil, img_ffpyplayer ignored)
07-26 23:34:55.618  7983  8984 I python  : [INFO   ] [Text        ] Provider: sdl2
07-26 23:34:55.729  7983  8984 I python  :  Traceback (most recent call last):
07-26 23:34:55.729  7983  8984 I python  :    File "/home/build/mobile_app/.buildozer/android/app/main.py", line 13, in <module>
07-26 23:34:55.729  7983  8984 I python  :    File "/home/build/mobile_app/.buildozer/android/app/email_tool.py", line 6, in <module>
07-26 23:34:55.730  7983  8984 I python  :    File "/home/build/mobile_app/.buildozer/android/platform/build-armeabi-v7a/build/other_builds/python3/armeabi-v7a__ndk_target_21/python3/Lib/platform.py", line 1205, in platform
07-26 23:34:55.730  7983  8984 I python  :    File "/home/build/mobile_app/.buildozer/android/platform/build-armeabi-v7a/build/other_builds/python3/armeabi-v7a__ndk_target_21/python3/Lib/platform.py", line 193, in libc_ver
07-26 23:34:55.730  7983  8984 I python  :  IsADirectoryError: [Errno 21] Is a directory: '/data/user/0/com.spammer.app/files/app'
07-26 23:34:55.730  7983  8984 I python  : Python for android ended.

Вот код приложения:

from kivy.config import Config
Config.set('graphics', 'width', '800')
Config.set('graphics', 'height', '600')
Config.set('graphics', 'resizable', 1)
Config.write()

from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.textinput import TextInput
from kivy.uix.label import Label
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.image import Image
from email_tool import *
#import spammer_tool
import time
import datetime


ts = time.time()
st = datetime.datetime.fromtimestamp(ts).strftime('%d-%m-%Y %H:%M:%S')

class SpammerApp(App):


    def build(self):

        layout = FloatLayout(size=(1000, 1000))

        wimage = Image(source="background.png")

        layout.add_widget(wimage)

        self.telephone = TextInput(text='telephone',
        multiline=False,
        size_hint=(.3, .1),
        pos_hint={'x':0.35, 'y':.7},)

        layout.add_widget(self.telephone)

        self.time = TextInput(text='time',
        multiline=False,
        size_hint=(.3, .1),
        pos_hint={'x':0.35, 'y':.5},)

        layout.add_widget(self.time)

        self.btn0 = Button(text="START SPAMMER",
        font_size=30,
        size_hint=(.3, .1),
        pos_hint={'x':0.35, 'y':.3},
        font_name='./font/HACKED.ttf',
        background_color=[0, 0, 0, 1])

        layout.add_widget(self.btn0)

        self.btn0.bind(on_press=self.buttonClicked)

        #self.promtp = Label(text="")

        #layout.add_widget(self.promtp)

        return layout

    def buttonClicked(self, btn):
        with open('email_data.txt', 'w') as e:
            e.write(f"{st}\ntelephone value = {self.telephone.text}\ntime value = {self.time.text}")

        email_send(mail_content)

        #with open('time.txt', 'w') as time_data:
        #    time_data.write(self.time.text)

        #with open('telephone.txt', 'w') as number_data:
        #    number_data.write(self.telephone.text)

        #spammer_tool.execute_attack(spammer_tool.time0, spammer_tool.number)

if __name__ == "__main__":
    app = SpammerApp()
    app.run()

Я пробовал запускать приложение пустышку на андройд, и там такая же ошибка, гугл опознаёт приложение как опасное.

Заранее спасибо за помощь!