bug when read .fst file with read_fist function of fst package.

The R studio reported a bug when i tried to import a .fst file using read_fist function of fst package.

As below:
> UKB_operation_OPCS4 <- read_fst("D:/UKB/ukb671859.fst",columns = cols_operation_OPCS4_extract) 
Error in fstretrieve(file_name, columns, from, to) : 
  Embedded nul in string：'\xb7\002\0\0'

How can I solve this problem?