Evaaaaa_ ,
Thank you for reposting your question in English.
So, it appears that you have stopped received notifications from Instagram on your iPhone. I see that it appears you have checked the settings for Instagram and they appear to set correctly. I have a series of things for you to check. Bear with me and make the checks again, even if you have already done so. Doing this will ensure that nothing has been missed.
The first is to go to Settings > Instagram > Notifications and to Settings > Notifications > Instagram. From there you should be able to change how your push notifications will work with your iPhone. Take a look at the article and the section for troubleshooting issues with Push Notifications.
About Notifications on iPhone, iPad, and iPod touch
If you don't see it, you will want to delete Instagram and then download it again so you can get the immediate prompts on what to do about notifications.
If an app you installed unexpectedly quits, stops responding, or won’t open
Download your past purchases
Take care