Conditional analysis "Error in line"

Hello,

I'm an undergrad currently on my professional training year and I'm running a GWAS for my project. I am very new to data analysis and using gcta, I ran a conditional test but it isn't completing. 

I've used the command:

gcta64 --bfile cleanfemaleGWAS2 --maf 0.01 --cojo-file femaleSumStats.txt --cojo-actual-geno --cojo-cond rs207565.txt --out Femalegcta



Its been getting to the point:

Reading GWAS summary-level statistics from [FemSumStats.txt] ...



But then stops soon after with the message:

Error in line:

"                                                                   "

There are 6662 individuals, 529138 SNPs and my summary statistics file is saved as a tab delimited text file, I have checked my summary statistic file for spaces between lines and cant see any. Below is an example of my file:

SNP A1 A2 freq b se p N
rs926795 C T 0.1566 1.055 -0.020030423 0.2457 6662
rs2808111 A G 0.199 1.081 -0.021826459 0.1212 6662
rs65420 T C 0.1563 1.084 -0.021527671 0.1037 6662
rs507241 G A 0.1996 0.8991 0.030769748 0.1333 6662

Can someone suggest what might be the problem and how to address it?

Many Thanks