I don't know why all my edit button doesn't work since yesterday. In the log report, I got an AJAX HTTP error with 200 HTTP Code and "Invalid form POST data." message. And when I clicked any "edit" button, I received an Ajax error without any response Text:
Here are some buttons I found which don't work any more:
- From Feed Import Setting (edit button doesn't work):
- From Content type Adding (add existing product button doesn't work):
Does anyone have any idea why I got this???