Invalid permission in user roles ?

hi every one unfortunately delete the all user in the roles . it shows some errors , I mention it below 

 Invalid Permissions

You don't have permissions to view the required screen. Please contact the system administrator.

could you explain this ?

Screenshot (4).png

Thanks for the solution @Singaravelan S . It's working. 

Hello Mohana priya S,

some same thread was open earlier may be it will help you. I have attached the link here.

Thanks and Regards,

Akshay Deshpande

Community GuidelinesBe kind and respectful, give credit to the original source of content, and search for duplicates before posting.