dxlog

A couple of my quest are bugged, they are completed but fail, after i abandon i cant accept again another example im completing a quest, my next quest i dont accept right away so i walk to npc and walk back and now i cant get the quest anymore how i solve this? my main quests keep bugging for the 4rd time how i can still get these quest ? they are there but i cant click or see or accept it? /reload doesnt work relog also doesnt please help greetings