Instagram Business account glitch

Hi all,
When i switch my personal instagram account to business account the problem i am facing is my own profile link and my posts link are broken and not reachable. For instance if i copy the link of my profile and paste into any browser i will get the error of “sorry, this page is not available”

Also some of my followers can not send me DM or find my name.

But if i switch back to personal account, everything goes back to normal.

Ive done everything from connecting to facebook, temporary deactivating insta account etc etc but with no hope

Can anyone help me please