I downloaded FNF map of SAR toolkit with the parameters:
- Country: Switzerland
- Year: 2008
The log_process file is:
Warning 6: driver ESRI Shapefile does not support creation option SPATIALITE Warning 6: driver ESRI Shapefile does not support creation option SPATIALITE 0...10...20...30...40...50...60...70...80...90...100 - done. ERROR 2: gdalwarpoperation.cpp, 2306: cannot allocate 832299412 bytes Copying color table from /home/johnny/fnf8/.TMP2008//FNF_map.vrt to new file. Creating output file that is 21203P x 9812L. Processing input file /home/johnny/fnf8/.TMP2008//FNF_map.vrt. Using internal nodata values (e.g. 0) for image /home/johnny/fnf8/.TMP2008//FNF_map.vrt.
The downloaded .tif file is not displayed in the "DATA VISUALIZATION" section neither in QGIS:

