要分析孟德尔随机化分析

exposure_dat_clumped<-clump_data(exposure_dat, clump_kb=10000, clump_r2=0.001,clump_p1 = 1,clump_p2 = 1,pop = "EUR")
Please look at vignettes for options on running this locally if you need to run many instances of this command.
Clumping ucbMzP, 735 variants, using EUR population reference
No encoding supplied: defaulting to UTF-8.
Error in mtfrm.default(list(url = "https://api.opengwas.io/api/ld/clump", :
cannot mtfrm
这一步代码总是报错