Telegram sound issue


Apr 16, 2021
Hello there, I just bought poco X3.
I'm using Telegram a lot and I need it for my work.
I have 3-4 different groups in my work.
And I needed different notification sounds.
I modified the setting, but when I opened an empty folder by mistake in order to choose a sound, it stuck.
Now everytime I tap there to change the sound in a chat, it shows the same empty folder.
I have no sound at all to be notified.
Is there any solution?
My previous phone was xiaomi too and I had never such problems.