Struggling… as there is no sample data for your newly developed Infocube, why not try this?
Try using ABAP program CUBE_SAMPLE_CREATE. It allows you to enter required sample data directly into your cube without using any flat files, source system configuration etc. Records are added to the cube in one request using the APO interface without monitor log.
Try exploring even further with all the options available there.
Needless to say try it on Sandbox, development system before attempting on production environment.