Ok well the actual crash is coming from OcRam_Core. The red is what caused the crash, the yellow is just a warning to let you know that one of your map parameters is invalid, which in this case would be the Map parameter and should be something like this:
When you double click the parameter it should open up a transfer player like ui where you can point and click somewhere on a map to set it up, I am not sure if maybe you are trying to manually edit the text for the parameter instead, or if you are not on RMMZ 1.9.0 before this parameter type was added?
Probably you are trying to transfer to an invalid map and the other plugin is not set up to handle that.