Added error handling

Author: zaid1442011

app.py

@@ -13,12 +13,19 @@
 contact_info=os.getenv('contact')
 
 #Connect to Turbowarp's cloud server or another cloud server
-turbo_conn = scratch3.TwCloudConnection(project_id=scratch_project, username=username, cloud_host=server, purpose="A bot that syncs Scratch variables to another cloud server", contact=contact_info)
+try:
+    turbo_conn = scratch3.TwCloudConnection(project_id=scratch_project, username=username, cloud_host=server, purpose="A bot that syncs Scratch variables to another cloud server", contact=contact_info)
+except:
+    print("Couldn't connect to the cloud server. Closing the program.")
+    exit()
 
 set_vars = None
 while True:
     #Get a dictionary of the cloud variables on Scratch
     variables = scratch3.get_cloud(scratch_project)
+    if variables == {} or variables == None:
+        print("Something went wrong while retrieving the cloud variable list or there are no cloud variables in the project. Closing.")
+        exit()
     #Sets these variables in Turbowarp
     if set_vars == variables: continue
     for var in variables: