When I edit something in system -> configuration, it doesn't matter where, for example i want to edit the store contact address, it doesnt save my edit.
I can change and add products but I cant edit anything in the configuration.
The System log and exception log are empty and no errors are shown. Is says "The configuration has been saved."
Does someone know how to fix this.
Magento version: 126.96.36.199
EDIT: I have noticed that this problem has occurred when we applied patch SUPEE 11219 When i revert that patch we can save config in the backend again. Any idea?