ACPI Error: No pointer back to namespace node in package ( Dell inspiron 3481 )

[sylar_mm]

I have got ACPI Error in My Dell laptop model inspiron 3481. I even tried "acpi=off" method in grub config file. But when i do this method , there is no more battery indicator and can't shut down because it is freezing at showdown screen. Please see below picture and help me out.

http://i.imgur.com/dqjzN2H_d.jpg?maxwidth=640&shape=thumb&fidelity=medium

[sylar_mm]

Fun is running abnormally and heating up all times .. please any advice >>>>>> :(