Update app.py

app.py

@@ -105,9 +105,9 @@ def predict_next_day(symbol, timeframe):
 
 def plot_candlestick(data, symbol, timeframe, predicted_price=None):
     """Plots the candlestick chart with technical indicators."""
-    if not isinstance(data, pd.DataFrame) or data.empty:
+    if data.empty:
         raise ValueError("No valid data to plot. Please check your inputs.")
-    
+
     fig, ax = plt.subplots(figsize=(12, 6))
     mpf.plot(data, type='candle', style='charles', ax=ax, volume=True, show_nontrading=True)
 
@@ -126,6 +126,7 @@ def plot_candlestick(data, symbol, timeframe, predicted_price=None):
     fig.tight_layout()
     return fig
 
+
 def main():
     """Gradio Interface."""