cannot chage theme after upgrading from 1.6.0.6 to 1.6.0.8

[manivannanba]

hi,

 

We  have updated our prestashop form 1.6.0.6 to 1.6.0.8. After updating our website theme got broken due to unavailability of javascript file. After a long search and analysis found the way to fix the issue by changing the option "make all javascript at below" to yes. Then is fixes our issue. 

 

But i cant theme setting under perference in backend. It does not shows the theme layout and the save button too. Tried many solution but nothing help. Please help me to fix the issue

 

Broken theme selection screenshot