what(): std::bad_alloc Aborted (core dumped);

Hi,
I was trying --make-full-ldm using 1k genome data. 


* GCTB 2.03 beta                              ** Genome-wide Complex Trait Bayesian analysis ** Author: Jian Zeng, Luke Lloyd-Jones         ** MIT License                                 ************************************************
Analysis started: Thu Dec  2 18:17:14 2021
Options:
--bfile chr21--make-full-ldm--write-ldm-txt--out chr21--exclude-mhc
I am using ubuntu20.04 with a ram more than 100gb. 
I am getting the following error:

terminate called after throwing an instance of 'std::bad_alloc'
 what():  std::bad_alloc
Aborted (core dumped)

This error is persistent for chr1-20. but no error for chr21,chr22. What should I do now?