Instagram Locked Me Out and Recovery Code Did Not Work

One of the two Instagram accounts I actively use gave me an error when I tried to log in from my computer today, and I haven’t been able to access it since. I also tried using the recovery code, but it didn’t work. I even cleared my browser cache and restarted my devices, but nothing changed. At the moment, I can’t log in from my phone or iPad either. This account is important to me as I use it daily for both personal and professional purposes. I’m asking for your help to resolve this issue.