Transform left skewed data in R

I have a column that is left-skewed, I need to transform it. So I tried this

library(car)
vect<-c(1516201202, 1526238001, 1512050372, 1362933719, 1516342174, 1526502557 ,1523548827, 1512241202,1526417785, 1517846464)
powerTransform(vect)

The values in the vector are 13 digit numeric unix epoch timestamps like this I have few thousand values, pasting 10 of them here, I do the same operation on the entire column. This gave me an error

Error in qr.resid(xqr, w * fam(Y, lambda, j = TRUE, ...)) : NA/NaN/Inf in foreign function call (arg 5)

I was expecting transformed column back. Any Idea on how to do this in R?

Thanks Raj