Hi, I downloaded the 21 genome data from the game and I send a job to my university cluster to read the vcf file. but I keep getting this error:

Scanning file to determine attributes.
File attributes:
  meta lines: 598
  header_line: 599
  variant count: 3483000
  column count: 8
Meta line 598 read in.
All meta lines processed.
gt matrix initialized.
Character matrix gt created.
  Character matrix gt rows: 3483000
  Character matrix gt cols: 8
  skip: 0
  nrows: 3483000
  row_num: 0
Processed variant 1928000/var/spool/slurmd/job4788377/slurm_script: line 8: 87699 Killed                  Rscript /xxxx/xxxx/xxx/filter_snp_chr_21.R
slurmstepd: error: Detected 1 oom-kill event(s) in StepId=4788377.batch cgroup. Some of your processes may have been killed by the cgroup out-of-memory handler.

this is my R script :

library("R.utils")
library("vcfR")
library("stringr")
library("tidyverse")
library("dplyr")
vc=read.vcfR("gnomad.genomes.r2.1.1.sites.21.vcf")
df=vc@fix
data=as.data.frame(df)
data_snp=data %>%
  filter(str_length(ALT)==1 & str_length(REF)==1)#filtering for SNPs
write.csv(data_snp,"snp_genome_21.csv")

and this is the job:

#!/bin/bash

#SBATCH --time=05:00:00
#SBATCH --ntasks=1
#SBATCH --mem=40G

module load tensorflow/2.5.0
Rscript  /xxxx/xxx/filter_snp_chr_21.R

Does it mean there is not enough memory? I gave the job 25G memory.