The chief bm and lack of knowledge and understanding of process work properly. And do not have to recheck the accuracy regularly. Thus causing the crash occurred.
Due to the lack of BM and Chief knowledge and understanding in this process to work correctly and do not have to recheck the accuracy regularly. It can also cause the error occurred.
As BM Chief and lack of knowledge and understanding of the process is not working properly and there is a regular recheck the accuracy and therefore cause an error.