Showing "IntegrityError: (1062 Duplicate entry for "Accounts for key 'PRIMARY')" while installing erpnext to site

Did you already have ERPNext installed? or was this a second attempt at installing?

In any case, assuming you don’t have any data on this, it’s better to reinstall the site.

bench --site sitename reinstall

Tried it already. But no use. It showing same error even after reinstalling the site.