Get data from SoilGrid

I used to get data by using the code shared below. Now it doesn’t work anymore (The variable ov contains only data lat and lon). What could be the reason?

library(RCurl)
library(GSIF)
library(rjson)
library(sp)
# a20-a40
pnts <- data.frame(lon=c(25.622718,24.8909885,25.1746257,25.7687652,25.8114637,
                         25.0144102,25.1716947,24.5235939,26.0909422,25.5048733,
                         24.7604685,26.0271247,25.9000033,26.1660861,25.99764,
                         24.9656369,25.1614127,24.8309249), 
                   lat=c(49.3927099,49.8062357,48.9379293,49.1874657,48.8531533,
                         49.0615922,49.5889481,49.5390535,49.2039047,49.5594162,
                         49.3564161,49.3786846,49.2095662,49.0764702,49.1567037,
                         49.2480082,49.6369746,50.217551), 
                   id=c("p1","p2","p3","p4","p5","p6","p7","p8","p9","p10","p11",
                        "p12","p13","p14","p15","p16","p17","p18"))

coordinates(pnts) <- ~lon+lat
proj4string(pnts) <- CRS("+proj=longlat +datum=WGS84")
pnts
soilgrids.r <- REST.SoilGrids(c("TAXNWRB","CECSOL","ORCDRC","PHIHOX","PHIKCL", "WWP",
                                "OCSTHA","BLDFIE","CLYPPT","CRFVOL","SLTPPT","SNDPPT"))
ov <- over(soilgrids.r, pnts)