Hi,
I am not sure what’s wrong with your settings. Hope the followings steps should be useful for you.
Steps:
1. Create your account in Odoo.com and make sure you have CRM module enabled. i.e, https://wassim.odoo.com
2. Install Ninja Form plugin on your WordPress website.
3. Create Contact Me form using Ninja Form and publish it on any Page / Post.
4. Install WP Odoo Form Integrator plugin on your WordPress website.
5. Go to WP Odoo Form Integrator Settings page and configure the server properties.
i.e, URL: https://wassim.odoo.com
Database: wassim
Username: YOUR_EMAIL_ADDRESS
Password: PASSWORD
6. Click Add New in Left Menu to open Add New Odoo-Form Mapping page.
7. Give any title
8. Select Ninja Forms in Form Type
9. Select Contact Me in Form
10. Select Contact [res.partner] in Odoo Model
13. Map name (Odoo Field) to Name (Form Field)
14. Map email (Odoo Field) to Email (Form Field)
15. Save Mapping
Thanks,
Siva