You will have to use the software's built-in Help documentation to obtain this information because IBIS ERP software appears to be discontinued. There is no activity about its presence related to downloads, official website, manuals, troubleshooting or tutorials. There is a chance to obtain information related to this request using the contact options on official website: http://ibissystems.co.in/contact.html
The lack of resources must be caused by the fact that the software is not available for public use, instead the developer choose to provide support only for customers. This is the case for many applications of this kind from the financial category.