either there are two DRC decks or there is one deck that can be configured. open the calibre deck in a text editor and you will see lots of options that can be turned on/off. refer to the documentation to find out which one switches from IP mode to CHIP mode.
If this cell really came with the PDK then you don't need to worry about the DM1 error. Again, look at your deck. Most certainly there are switches that you can disable so it will stop checking for fill when fill isn't yet present.