Potential mistakes in iGranth.

WJKK WJKF. I am new to doing path. I was just reading sohila sahib on igranth. And found that in sohila sahib on igranth says "gauri deepki" whereas on sikhitothe max it says "gauri poorbi deepki". Secondly, on igranth it says "hao vaari jit sohile sada sukh hoye" and on sikhitothemax it says "hao vaari JAO jit sohile sada sukh hoye". Can somebody please help das explain this? Are these apps usually wrong and shouldn't be used to read gurbani. And pls suggest what other digital resource should be used? 🙏