diff --git a/app.py b/app.py
index 688321b..b5ec444 100644
--- a/app.py
+++ b/app.py
@@ -155,13 +155,13 @@ def extract(driver, username: str, password: str):
         historial_html_io = StringIO(f"<table>{historial_html}</table>")
         df = pd.read_html(historial_html_io)[0]
         
-        if 'GRUPO' not in df.columns:
-            raise KeyError("Column 'GRUPO' not found in the DataFrame")
-
-        df['PERIODO'] = df['PERIODO'].apply(lambda x: str(x).replace('.0', '') if isinstance(x, (float, int)) else x)
-
-        json_result = df[df['GRUPO'] != 'Promedio:'].to_json(orient='records')
+        json_result = []
         
+        if 'GRUPO' in df.columns:
+            df['PERIODO'] = df['PERIODO'].apply(lambda x: str(x).replace('.0', '') if isinstance(x, (float, int)) else x)
+            json_result = df[df['GRUPO'] != 'Promedio:'].to_json(orient='records')
+
+
         query = insert_alumno_extraccion(datos_html, materias_html, username_integer, json_result)
         print("Data extracted successfully")
         return json_result