Error NAs are not allowed in subscripted assignments

[sinjia7]

Hellow GSALightning team,

I have been recently using this program to compute p-values for gene lists within a gene expression dataset. However, I have not gotten the program to work on any gene sets. I always get the same exact error after using this line of code:

GSALightResults <- GSALight(eset = test1, fac = factor(id$study), gs = test, rmGSGenes = 'gene', nperm = 1000)

The error I keep on getting is

Error in obs[obs2 > obs1] <- -1 * obs[obs2 > obs1] : NAs are not allowed in subscripted assignments

I am not sure how to fix this. I have attached the expression dataset (a smaller version) as well as the fac set which just contains one name for all cells. I did not include a specific gene list because this problem persists on any gene list I input. Any help would be appreciated. Thank you!
id.txt
expressionmatrix.txt