Kim Zolciak and Kroy Biermann Still Bickering Amid Ongoing Divorce

Kim Zolciak and Kroy Biermann might not be having as many public explosions as last year ... but the divorce is still going on, with sources telling us the fighting never stops. Sources with direct knowledge tell TMZ ... Kim & Kroy are still on the divorce track, even though there hasn't been much in the news about the soon-to-be exes. We're told the two are at each other a lot, with their on-and-off fighting…