Why won't my Lumia 1020 allow me to add or remove accounts?

[Windows Central Question]

I own a Lumia 1020 but dosent allow me to add or remove accouts can you help please

The OS is WP8.1 I also have the Microsoft Demo1,2,3 + Retail Mode

 

[pankaj981]

Flash it to a non-DEMO ROM. Looks like you've the demo ROM