Unable to log into my account on Instagram

Hello, I'm facing a huge problem since this morning. I wanted to try a third-party follower management app (Reports pro) available on the App Store, and to log in, I was sent a security code via SMS. However, once I entered this code, I browsed the follower management app for 10 seconds, I tried to go back to my Instagram profile and saw that I was logged out! I then tried to log back into my account, and I was told that a verification code would be sent to me via SMS but I received nothing. I have tried at least a good ten times throughout the day and still nothing. I also cannot use the 8-digit two-factor authentication code because I no longer have it.

I have a second professional account on Instagram, I tried that one and it works; so it’s not an app bug. I checked my other profile as a visitor and it is visible, so it’s not deactivated. I uninstalled and reinstalled the apps, checked the phone’s update, the network, I tried on Wi-Fi and nothing works when I launch Instagram, either I’m not sent the code via SMS, or it shows an error message "An error occurred and the page cannot be loaded" with a "refresh the page" button, but when you press it, it reloads with exactly the same error message.

My Insta account is linked to my Facebook account, when I try to check the Meta options to modify, for example, the two-factor authentication, I cannot save anything, it fails on any option I try to modify. I want to point out that on the Meta management screen of my Insta accounts, it says "restricted" next to the name of the account I am trying to access. However, I have not received any message or email regarding a restriction of the account. I attempted to log in via my PC, but the same problem: at the moment I entered my username and password, I was told an SMS had just been sent to confirm my identity, but I still receive nothing, even if I request to receive the code again. I want to clarify that it is indeed the correct phone number registered, that I have already used this verification system via Insta and that I have never encountered this issue before.

It seems to me that Instagram detects bots linked to certain follower management and account stats applications and that it can cause conflicts, but at this moment since the account seems to be marked "restricted", I would like to know when this will end as I have no information on this subject. Obviously, there is no way to contact the technical team, I have tried many things to manage to log in to my account and nothing works. In the meantime, I am receiving important messages and am unable to read them for work... Thank you very much for your help, hoping I have been clear in my explanations.