[Plugin: OptionTree] Adding Section and Setting is Void

Hi Guys

Just downloaded the new OptionTree 2.0.5 I’m trying to add a section or a setting, but it’s not executing at all. if I try changing one of the settings and click save, it just gives an error. making a new layout works, but that’s about it. Any one else having this problem? I tried looking at the file permissions, they are all 644. Please advice.

Best