Hello Sérgio! Is it possible there is a field somewhere on the page that has missing data in it and is preventing the save button from activating? That was the only way I was able to replicate this. As an example I enabled Collabora which requires the server hostname and/or other details to be filled out - if I don't fill those out the Save button will not activate. Could that be what is happening here too?
Kyle Kerst
Acting IT Manager
SmarterTools Inc.
www.smartertools.com