How to solve this "sparse->dense coercion: allocating vector of size 17.3 GiB"

[XjtuZhangKun-lab]

reactome_obj <- analyse_sc_clusters(temp,create_reactome_visualization=T,Verbose= F )
Converting expression data to string... (This may take a moment)
Conversion complete
Compressing request data...
Reactome Analysis submitted succesfully
Warning message:
In asMethod(object) :
sparse->dense coercion: allocating vector of size 17.3 GiB