I made this model:

MC.distRoad<-glmmTMB(distStation~distRoad + (1|site.id),family = Gamma (link = “log”),
data = disp.data)

I got this warning message:
In (function (start, objective, gradient = NULL, hessian = NULL, :
NA/NaN function evaluation

In the summary everything is ok.

With DHARMa I got this result (image; where everything is ok):

So, why am I getting this warning?

PS: Its normal to have a very few data on the type of work I’m doing.

Thank you