Do you need help with of internal parts? Is your Promob Cut plugin currently active?
Always save your project before hitting the render button. Old software is unpredictable—treat every render like it might fail. Promob Plus 2015 render cut
If you meant a specific tool name or have a specific error message appearing in Promob Plus 2015, please provide the error text, and I can give you a more targeted solution. Do you need help with of internal parts