LOG.warning on non-fatal feed generation errors
LOG.warning on non-fatal feed generation errors

antonsotin/vkfeedtrue,KonishchevDmitry/vkfeed,Evorvian/vkfeed,tol1k/vkfeed,antonsotin/vkfeedtrue,greengeez/vkfeed,tol1k/vkfeed,greengeez/vkfeed,flyer2001/vkrss,kostkost/vkfeed,zhenkyn/vkfeedd,Densvin/RSSVK,ByKRAK/app,ALERTua/vkfeed,Evorvian/vkfeed,kostkost/vkfeed,lokineverdie/parservkrss1488,schelkovo/rss,KonishchevDmitry/vkfeed,antonsotin/vkfeedtrue,schelkovo/rss,lokineverdie/parservkrss1488,zhenkyn/vkfeedd,KonishchevDmitry/vkfeed,flyer2001/vkrss,ALERTua/vkfeed,Densvin/RSSVK,ByKRAK/app