Error return from the pooledBin function (R package binGroup) depending on the method of confidence interval calculation

Question

Can anyone explain me, what is going wrong in the confidence interval estimation?

library(binGroup)
x1 <- c(0, 0, 0, 0, 0 ,0 ,1)
m1 <- c(2  , 3 , 38 , 64 , 88, 113 ,250)
n1 <- c(1 , 1 , 1 , 2  ,1,  1, 56)

Error:

pooledBin(x=x1, m=m1, n=n1)
Error in if (abs(p.new - p.old) < tol) done <- 1 : 
      missing value where TRUE/FALSE needed

I do not get any error if I use the ci.method "mir":

pooledBin(x=x1, m=m1, n=n1,ci.method = "mir")

PointEst    Lower    Upper 
       1e-04    0e+00    2e-04