diff --git a/Core.lua b/Core.lua
index 5d7db64..f892f30 100644
--- a/Core.lua
+++ b/Core.lua
@@ -3579,8 +3579,8 @@ function IsCurrentAction(slot)
             if spellId then
                 -- Prefer GetCastInfo (Nampower 2.18+) for cleaner API
                 if GetCastInfo then
-                    local info = GetCastInfo()
-                    if info and info.spellId == spellId then
+                    local ok, info = pcall(GetCastInfo)
+                    if ok and info and info.spellId == spellId then
                         -- Spell is actively being cast/channeled
                         return true
                     end
@@ -4206,8 +4206,8 @@ function CleveRoids.Frame:SPELLCAST_CHANNEL_START()
     -- Try to get spell info - prefer GetCastInfo (Nampower 2.18+) for better data
     local spellId = nil
     if GetCastInfo then
-        local info = GetCastInfo()
-        if info and info.spellId and info.spellId > 0 then
+        local ok, info = pcall(GetCastInfo)
+        if ok and info and info.spellId and info.spellId > 0 then
             spellId = info.spellId
             -- Also capture timing data
             CleveRoids.CurrentSpell.castRemainingMs = info.castRemainingMs
@@ -4272,8 +4272,8 @@ function CleveRoids.Frame:SPELLCAST_START()
     -- Try to get spell info - prefer GetCastInfo (Nampower 2.18+) for better data
     local spellId = nil
     if GetCastInfo then
-        local info = GetCastInfo()
-        if info and info.spellId and info.spellId > 0 then
+        local ok, info = pcall(GetCastInfo)
+        if ok and info and info.spellId and info.spellId > 0 then
             spellId = info.spellId
             -- Also capture timing data
             CleveRoids.CurrentSpell.castRemainingMs = info.castRemainingMs
diff --git a/Init.lua b/Init.lua
index ad56807..88acb99 100644
--- a/Init.lua
+++ b/Init.lua
@@ -87,8 +87,8 @@ CleveRoids.UpdateCastingState = function()
 
     -- Enhanced timing data from GetCastInfo (Nampower 2.18+)
     if GetCastInfo then
-        local info = GetCastInfo()
-        if info then
+        local ok, info = pcall(GetCastInfo)
+        if ok and info then
             CleveRoids.CurrentSpell.castRemainingMs = info.castRemainingMs
             CleveRoids.CurrentSpell.castEndTime = info.castEndS
             CleveRoids.CurrentSpell.gcdRemainingMs = info.gcdRemainingMs
diff --git a/NampowerAPI.lua b/NampowerAPI.lua
index 386759f..8de1f07 100644
--- a/NampowerAPI.lua
+++ b/NampowerAPI.lua
@@ -1177,7 +1177,11 @@ end
 function API.GetCastInfo()
     -- Use native function if available (v2.18+)
     if GetCastInfo then
-        return GetCastInfo()
+        local ok, result = pcall(GetCastInfo)
+        if ok then
+            return result
+        end
+        -- If pcall failed, fall through to fallback
     end
 
     -- Fallback: use GetCurrentCastingInfo (less detailed)