Incorrect DATE value

[harshit.b.bhatt]

I am getting this error pymysql.err.OperationalError: (1525, “Incorrect DATE value: ‘None’”) at the time of creating new purchase order.

Even same error I am getting when I am creating new item in the system.

[1816_Kamal_Singh_Mah]

i am also getting the same error .
Please Help