Looks like Grail 079 fixed the issue.  Thanks for all the work you do on this add-on, couldn't quest in old zones without it.

 Since the legion pre-patch I keep getting this error when I click on any zone on the map that has quests I haven't done yet.  Also nothing shows up when doing /loremaster, /lm, or /lm show since the update.  I am using the most recent version for 7.0.3.

Message: Interface\AddOns\Loremaster\modules\poi.lua:23: attempt to index field 'db' (a nil value)
Time: 07/20/16 20:04:29
Count: 10
Stack: [C]: ?
Interface\AddOns\Loremaster\modules\poi.lua:23: in function <Interface\AddOns\Loremaster\modules\poi.lua:21>
Interface\AddOns\Loremaster\modules\poi.lua:45: in function <Interface\AddOns\Loremaster\modules\poi.lua:37>
Interface\AddOns\Loremaster\modules\poi.lua:104: in function <Interface\AddOns\Loremaster\modules\poi.lua:73>
Interface\AddOns\Loremaster\modules\poi.lua:131: in function `ShowZoneMarkers'
Interface\AddOns\Loremaster\modules\poi.lua:206: in function <Interface\AddOns\Loremaster\modules\poi.lua:198>
[C]: ?

Locals:

This addon doesn't work for me no matter what i do. I installed grail, i installed chocolate bar, /lm /lmshow, /loremaster none works. There is no button in the map either. When i try to use "show loremaster" from chocolate bar it just does nothing. Tried to reinstall redownload, restart, reset, disable elvui, disable every addon, enable one by one. None works. 

The issue with this:

Date: 2016-05-18 10:02:34
Message: ..\AddOns\Loremaster\modules\general.lua line 175:
bad argument #1 to 'pairs' (table expected, got nil)
Debug:
Loremaster\modules\general.lua:175: scanAchievements()
Loremaster\modules\events.lua:160: eventHandler()
Loremaster\modules\initialise.lua:59:
Loremaster\modules\initialise.lua:59

Is because he started to update it for Legion, but never finished. 

Now, I'm not sure the best way to go about this, but a quick fix is to edit line 950 in Grail\Grail.lua, self.inLegion = (self.blizzardRelease >= 21531) , and change 21531 to some number higher than (at this current moment) 21742. 

For anyone who cares, the bug is thrown because:

When in Loremaster\modules\general.lua, line 169,

limit = #(Grail.continentMapIds)

is set to 8 because for whatever reason, the coder chose build 21531 to be considered Legion.

So then when the loop in line 175,

pairs(achlist[continent])

is performed, this is a reference to Grail-Achievements\Grail-Achievements.lua and the table created there. The loop will eventually set continent to 8 to get the list of legion quests and achievements, however, in Grail-Achievements.lua, there is no continent 8 yet with any quests/achievements actually listed. So the loop fails. This is where the coding began but was never finished.

The proper fix would be to create a new table with new achievement ids by region and add a new local G list with quests related to these region's quest achievements.

sadly seems another abandoned great addon...

For the first time in WOW gaming,, i've decided YESTERDAY to do the loremaster achievements, found best addon for it, and at the next day this bug... This is just cruel...
I really hope developers will fix it in a few days!

Also having problems here. Only yesterday i installed this addon, and it worked perfectly, but today there was some small WOW update and it stopped working. Unlike two persons under my comment, i don't get any errors, addon just doesn't work. It is shown in addon list in character selection page, but when you enter the game, it's just disappear, there's no minimap button and you can't open it via slash commands either.

I believe it is primarily a Grail issue, but Loremaster actually finds the problem (rather then addon working but not doing their job). However, i don't have anything with LM development, so i am not sure about it.

Keep getting an error every time i attack a target.  Also completed quests are still showing on my map even though i have selected the option to not show completed quests.

Message: Interface\AddOns\Loremaster\modules\events.lua:219: attempt to index field 'db' (a nil value)
Time: 05/18/16 02:14:49
Count: 3
Stack: Interface\AddOns\Loremaster\modules\events.lua:219: in function `eventHandler'
Interface\AddOns\Loremaster\modules\initialise.lua:59: in function <Interface\AddOns\Loremaster\modules\initialise.lua:59>

Locals: self = <table> {
 updateScroll = <function> defined @Interface\AddOns\Loremaster\modules\subframes.lua:186
 scanAchievements = <function> defined @Interface\AddOns\Loremaster\modules\general.lua:158
 _QuestCompleted = <function> defined @Interface\AddOns\Loremaster\Loremaster.lua:280
 itemicon = "Interface\ContainerFrame\UI-Icon-QuestBang"
 tcoords = <table> {
 }
 resetInterface = <function> defined @Interface\AddOns\Loremaster\modules\general.lua:200
 CreateQuestFrame = <function> defined @Interface\AddOns\Loremaster\Loremaster.lua:88
 questComplete = <function> defined @Interface\AddOns\Loremaster\modules\events.lua:77
 Truncate = <function> defined @Interface\AddOns\Loremaster\modules\general.lua:225
 createScrollFrame = <function> defined @Interface\AddOns\Loremaster\modules\subframes.lua:266
 eventHandler = <function> defined @Interface\AddOns\Loremaster\modules\events.lua:97
 UpdateMarkerTextures = <function> defined @Interface\AddOns\Loremaster\modules\poi.lua:13
 LoremasterZoneFrame = <table> {
 }
 setNotes = <function> defined @Interface\AddOns\Loremaster\modules\general.lua:64
 npcicon = "Interface\TUTORIALFRAME\UI-TutorialFrame-QuestGiver"
 getContinents = <function> defined @Interface\AddOns\Loremaster\modules\general.lua:17
 createDisplayFrame = <function> defined @Interface\AddOns\Loremaster\modules\subframes.lua:276
 updateQuestCount = <function> defined @Interface\AddOns\Loremaster\modules\general.lua:44
 LH = false
 placeLines = <function> defined @Interface\AddOns\Loremaster\modules\subframes.lua:254
 factiontexture = "Interface\GROUPFRAME\UI-Group-PVP-Alliance"
 chatCommand = <function> defined @Interface\AddOns\Loremaster\modules\slashcommands.lua:18
 ShowZoneMarkers = <function> defined @Interface\AddOns\Loremaster\modules\poi.lua:130
 zlist = <table> {
 }
 createLoremasterOptions = <function> defined @Interface\AddOns\Loremaster\modules\options.lua:163
 startsSeries = <table> {
 }
 LoremasterContinentFrame = <table> {
 }
 resetLines = <function> defined @Interface\AddOns\Loremaster\modules\general.lua:12
 TT = true
 ldb = <table> {
 }
 LoremasterQuestFrame = <table> {
 }
 ClearMarker = <function> defined @Interface\AddOns\Loremaster\modules\poi.lua:51
 partOfSeries = <table> {
 }
 incombat = true
 clickResponder = <function> defined @Interface\AddOns\Loremaster\modules\subframes.lua:66
 updateZoneCount = <function> defined @Interface\AddOns\Loremaster\modules\general.lua:53
 createLine = <function> defined @Interface\AddOns\Loremaster\modules\subframes.lua:241
 profileReset = <function> defined @Interface\AddOns\Loremaster\modules\options.lua:152
 LoremasterStoryFrame = <table> {
 }
 faction = "Alliance"
 L = <table> {
 }
 frame = <unnamed> {
 }
 achscan = <function> defined @Interface\AddOns\Loremaster\modules\events.lua:85
 icons = <table> {
 }
}
this = <unnamed> {
 0 = <userdata>
}
event = "PLAYER_REGEN_DISABLED"
arg1 = nil
zid = nil
cmz = nil
cmc = nil
mid = nil
r = nil
c = nil
e = nil
i = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to index field 'db' (a nil value)"
createLDBMenu = <function> defined @Interface\AddOns\Loremaster\modules\events.lua:12
LibStub = <table> {
 NewLibrary = <function> defined @Interface\AddOns\Atlas\Libs\LibStub\LibStub.lua:20
 minors = <table> {
 }
 minor = 2
 IterateL

Getting error after last update today...

Good idea for a mod, too bad it doesn't work. When I finished talador loremaster it still listed 17 quests that I had to finish, so at least 17 unnecessary quests there... and yet other quests in the middle of quest chains are mysteriously absent (e.g. The Kaliri Whisperer) forcing you to grab every quest in sight in order to continue. After spending 6 hours trying to finish loremaster in Spires of Arak, and having to go back to camps over and over picking up quests which aren't on the Loremaster list, I uninstalled this. I fear the next expansion will be out before this is even close to being a useful mod.

I have played since vanilla and this is the first mod I have tried which actually makes WoW harder to play than the default UI. 

I've installed loremaster, grail, everquest, and wholly and when I open the loremaster window and select draenor, the achievement As I walk through the valley of the shadow... shows no quessts.   This is the only category that has zero quests all other zones from all other continents work fine.  Is anyone else having this or a similar problem and how do you go about fixing it?  Thanks.

I'm getting this behavior in Talador, dosn't seem to matter what I do I can't get the Talador quests to show up