Error using plot.summary.censReg

[katianak]

Hello, I am workig wih a panel tobit model and I am trying to plot the model diagnostics. However, I get this error:

plot.summary.censReg(tobit1, which="All", set.up=TRUE)
Error: object of type 'closure' is not subsettable

I found online that the error is because there is a function treated as a variable, so some square brackets in the code may need to be changed to parenthesis. I checked the code for the function, but could not figure it out. Any suggestions/comments are more than welcome to help go through the error.