Your IOS249 should be base 56, curre tly u have the same cios installed to slot 249/250
Probably won't resolve your issue, but still work fixing
Drag and drop your syscheck.csv onto modmii.exe and it will tell you what to do
Generally this is fine for apps, just don't use mymenuify mod on vWii (at least not if u have priiloader installed on vWii, or until mymenuify gets updated, use csm installer for themes on vWii instead), and also don't try using region change...