Hello Odooers

I try to open the app "Setting" but I get this error.

Uncaught Promise > Missing field string information for the field 'is_installed_sale' from the 'res.config.settings' model. 

Since I'm new to the Odoo framework. Can any of you gents guide a newbie. 

I first thought it came from my custom app. But I after uninstalling, the error persists. 

Here is the full error. 

UncaughtPromiseError

Uncaught Promise > Missing field string information for the field 'is_installed_sale' from the 'res.config.settings' model

Error: Missing field string information for the field 'is_installed_sale' from the 'res.config.settings' model

    at http://localhost:8069/web/assets/536-d890fc3/web.assets_backend.min.js:6767:258

    at traverse (http://localhost:8069/web/assets/536-d890fc3/web.assets_backend.min.js:6762:200)

    at http://localhost:8069/web/assets/536-d890fc3/web.assets_backend.min.js:6762:242

    at Function.each (http://localhost:8069/web/assets/535-c168894/web.assets_common.min.js:173:149)

    at traverse (http://localhost:8069/web/assets/536-d890fc3/web.assets_backend.min.js:6762:211)

    at http://localhost:8069/web/assets/536-d890fc3/web.assets_backend.min.js:6762:242

    at Function.each (http://localhost:8069/web/assets/535-c168894/web.assets_common.min.js:173:149)

    at traverse (http://localhost:8069/web/assets/536-d890fc3/web.assets_backend.min.js:6762:211)

    at http://localhost:8069/web/assets/536-d890fc3/web.assets_backend.min.js:6762:242

    at Function.each (http://localhost:8069/web/assets/535-c168894/web.assets_common.min.js:173:149)