Instagram Crash

Unable to open instagram on my iphone.

Tried to uninstall and reinstall instagram not working.

Rest my iphone to factory settings not working as well.

Backup and restore my iphone not working as well.

Install instagram with another apple ID not working also.

Tried to update the ios to 14.0.1 (not able to update) and from itunes shows that 14.0 is the latest version.