HTTP 500 when create new document

[ghimawan]

Hi,

I installed ACE 1.6.5-pl on modx-2.5.1-pl. But after install, then I was unable to create new document (by clicking icon document or plus sign in left panel). The screen is white. If inspected using Developer Tool on browser it says HTTP error 500. I already change System Setting for editor 'which_editor' to 'Ace' and 'use_editor' to 'No' and other combination value, but still no luck. Am I missing something? Please help.

Thank you.