#1062 - Duplicate entry for key 'PRIMARY'

You need to remove shares as your PRIMARY KEY OR UNIQUE_KEY

1. Make sure PRIMARY KEY was selected AUTO_INCREMENT.
2. Just enable Auto increment by :
   ALTER TABLE [table name] AUTO_INCREMENT = 1
3. When you execute the insert command you have to skip this key.

Use SHOW CREATE TABLE your-table-name to see what column is your primary key.