there are many factors there.
1--are you using Singular? most errors in questing can be solved using the routine included with honorbuddy.
2--is your toon squishy? dies a lot? as Musixx suggested, try a different spec. I am leveling as resto druid and rarely die. just watch your artifact wep power tokens
3--are you starting and stopping the questbot? starting and stopping the questbot off and on will definitely slow you down. questbot has a hard time remembering where it is when restarted. try to only stop when there is an issue, or when you've finished a questhub.
if you still feel like you are having issues, write down the quest, clear your log folder, restart hb(running singular) and recreate the issue. stop and rename that log with a name you will remember, such as the name of the offending quest. post your log and a short description in the appropriate thread and wait patiently.
if nothing else, do the quest manually and make a note for later.
ps. there are many more things that you can do, but these will be a good start for a beginning user of hb.