Unable to use factors in GAMLj

[beatriz]

Hi,

I has installed GAMLj modules from the jamovi library (jamovi 1.2.27, windows 10). But I had a few problems.
I'm receiving an error message: "contrasts can be applied only to factors with 2 or more levels". However, I'm using a factor that has 2 levels. I uninstalled and tried to installed it again. But it still couldn't use factors.
Could you give me some help? Thanks a lot!

[mcfanda@gmail.com]

Hi, could you share an example of an analysis that gives this error? thanks