Fix crash problem

DBHelper.py

@@ -1,4 +1,7 @@
 import pyrebase
+import sys
+
+pwd = sys.path[0]
 
 firebaseConfig = {
     'apiKey': "AIzaSyAdL0W5HscjEDFPK4BDi6Cnc7FLa30GPYY",
@@ -9,7 +12,7 @@ firebaseConfig = {
     'messagingSenderId': "163692530359",
     'appId': "1:163692530359:web:b6dc7ccfc56a79afb11b32",
     'measurementId': "G-EPWP2LK89Q",
-    'serviceAccount': 'vehicleantitheftrecognition-firebase-adminsdk-krrgw-05da515de5.json'
+    'serviceAccount': pwd + '/vehicleantitheftrecognition-firebase-adminsdk-krrgw-05da515de5.json'
 }
 
 firebase = pyrebase.initialize_app(firebaseConfig)

Facial_Recognition_Inference.py

@@ -26,7 +26,7 @@ def inference():
     index = np.load(pwd + '/Facial_models/index.pkl', allow_pickle=True)
     faceDescriptorsEnrolled = np.load(pwd + '/Facial_models/descriptors.npy')
 
-    cam = cv2.VideoCapture(0)
+    cam = cv2.VideoCapture(1)
     count = 0
 
     x1 = x2 = y1 = y2 = 0

Main.py

@@ -1,5 +1,5 @@
 import DBHelper
-import Start_Engine
+import start_engine
 import Upload_Face
 import Remove_Face
 import Check_Up
@@ -10,7 +10,7 @@ if __name__ == "__main__":
     print("Starting the program.")
     while True:
         if DBHelper.get_power() == "on":
-            Start_Engine.start()
+            start_engine.start()
 
         if None not in (DBHelper.get_register_firstname(),
                         DBHelper.get_register_lastname(),