This error message means that there is a resource conflict with your data acquisition card and another device in your computer, specifically an interrupt level.
I would recommend using the DAQ installation wizard at http://www.ni.com/support/daq/ to make sure your card is installed correctly and not in conflict with other devices. Once you have selected your OS and DAQ card, you can view the Resource Conflicts article that is under the common problems topic. This article walks you through a series of steps to realize and resolve your resource conflict.