now its working

main.py

@@ -4,6 +4,7 @@ from dash_bootstrap_components.themes import BOOTSTRAP
 
 from src.components.layout import create_layout
 from src.data.loader_gz import load_spc_data
+#from src.data.loader_gz import load_transition_data
 from json import load
 import os
 from dotenv import load_dotenv
@@ -17,7 +18,7 @@ with open(config_file) as config_f:
 def main() -> None:
     print(os.getenv("MY_ENV_VAR"))
     # load the data and create the data manager
-    data = load_transaction_data(config["DATA_PATH"])
+    data = load_spc_data(config["DATA_PATH"])
 
     app = Dash(external_stylesheets=[BOOTSTRAP])
     app.title = "Reliability Dashboard"