fix: fixed invalid index referencing in table due to user-specified invalid mapping configuration

]

@@ -0,0 +1,20 @@
+---@type ChadrcConfig
+local M = {}
+
+-- Path to overriding theme and highlights files
+local highlights = require "custom.highlights"
+
+M.ui = {
+  theme = "jellybeans",
+  -- theme_toggle = { "onedark", "one_light" },
+
+  hl_override = highlights.override,
+  hl_add = highlights.add,
+}
+
+M.plugins = "custom.plugins"
+
+-- check core.mappings for table structure
+M.mappings = require "custom.mappings"
+
+return M

lua/core/utils.lua

@@ -53,6 +53,7 @@ end
 
 M.load_mappings = function(section, mapping_opt)
   vim.schedule(function()
+    local function sec_section_map_func()
       local function set_section_map(section_values)
         if section_values.plugin then
           return
@@ -76,6 +77,7 @@ M.load_mappings = function(section, mapping_opt)
 
       local mappings = require("core.utils").load_config().mappings
 
+
       if type(section) == "string" then
         mappings[section]["plugin"] = nil
         mappings = { mappings[section] }
@@ -84,7 +86,15 @@ M.load_mappings = function(section, mapping_opt)
       for _, sect in pairs(mappings) do
         set_section_map(sect)
       end
-  end)
+    end
+
+    local ok, err = pcall(sec_section_map_func)
+    if ok == false then
+      local chadrc_path = vim.api.nvim_get_runtime_file("lua/custom/chadrc.lua", false)[1]
+      error(string.format("check mappings in %s =>  %s", chadrc_path, err))
+    end
+  end
+  )
 end
 
 M.lazy_load = function(plugin)