I can’t seem to log in my instagram account

Everytime I try to log in to my account it says that the password is incorrect but it’s not . I’m only being able to log in through the website. I have tried deleting and reinstalling the app but still doesn’t work. I already updated the app and nothing happened. I think the app has a bug on my phone because if I try logging in on another phone through the app it works . What do I do now ?