Error in enparCensored

[alexkowa]

From the vignette of NADA2: Line 535-541

data(Example1, package = "NADA2")
enparCensored(Example1$Arsenic, Example1$NDisTRUE, 
             ci=TRUE, ci.method="bootstrap", ci.type="upper",
               n.bootstraps=5000)

Error in r - m[-1] : non-numeric argument to binary operator