Update app.py

app.py

@@ -183,7 +183,7 @@ def calculate_take_profit(target_price, fibonacci_levels, buy_signal):
             take_profit_fibonacci_level = min(closest_levels.keys())
         else:
             take_profit_fibonacci_level = 0
-            closest_levels = {0%: 0}  # Assuming default level and price
+            closest_levels = {"0%": 0}  # Assuming default level and price
 
     take_profit = closest_levels[take_profit_fibonacci_level]