Showing error in paython

Sir I wrote same program which I learn into course but it is showing error. I wrote Nested if condition.

**I think your mean is this ,plz check the code try to run it **

age = int(input("Enter your age: "))
if age>=18:
weight = int(input("Enter your weight: "))
if weight<=50:
print(“Please Increase Your wight”)
else:
print(“Your weight are Match with you body”)
else:
print(“You are not allow for fill this section”)

Also please Mentan the indentation error inmy code