well, ok, so I deleted LibFredo from the AppData folder, leaving the only version installed at ProgramData.
Now all Fredo6 plugins bugged. Except Curviloft, which now is working...
It seems I need to do the inverse: install all Fredo plugins, including Curviloft, at AppData.
EDIT
Ok, it turns out I canĀ“t install at the default plugins folder. no permissions. Following all the instructions available here at the site did not help. I just canĀ“t change the permissions for the folder. Options greyed-out. Tried to take ownership. No luck.
So I installed two versions of LibFredo6. One using the automatic Sketchucation Store installer at Program Data folder.
The other I installed MANUALLY at the main plugins folder, using RBZ extension, so previous Fredo plugins installed there would work.
Now everything is working again and I do not get the Error Message.
Solved? NO!!!
JUst canĀ“t find Curviloft anywhere. No toolbar (nor toolbar available at "view/toolbars"). Did not find it either at Plugins or the Tools drop down window...
EDIT:
solved, installing Curviloft MANUALLY (RBZ) worked.