Calendar and search box problem in Exchange hybrid

Hi,

I have an exchange server running on-prem. I couldn't see the outlook calendar in Teams. I read an article saying that I need to make an M365 hybrid with exchange for this. I completed the migration with hybrid wizard. I got errors but the wizard was saying that I had to fix them manually. I fixed it then it gave an error that mailboxes were not migrated to M365. I will continue to use on-prem exchange server. I checked Outlook after complaints from users. Shared calendars and email search box do not work. There are different errors when I try to open it or when I try to share a calendar it does not work. I can send it outside the institution. When I enter from Owa, I can see or share the shared calendars, the search box works. Errors, some of which say it's about permissions. The configuration for my Microsoft domain in the Organization -> Sharing tab appears to be incorrect. It shows up as abc.mail.onmicrosoft.com. Normally it should be abc.onmicrosoft.com. How do I get these services to work in-house? Should I fix the Organization -> Sharing tab?