Probably it's language dependant? Might that be? I see widget and app mostly localized to german and some cities contain umlauts like "Lübeck" as well as some weather related strings ("überwiegend bewölkt"). Using gismeteo.ru I don't get as much information as I got when using weather.com but for now at least all strings seem to be localized while some strings from weather.com were not.

Vlad, would the logfile be useful to you? Whereas logfile is not correct word, it's the normal output of omweather when started from commandline. I guess you could get the same output on your device as it's not related to the crash and only contains errors and warnings regarding malformed XML and such stuff.