diff --git a/commands/cloop.js b/commands/cloop.js
index ef35b0c..ed0bbe7 100644
--- a/commands/cloop.js
+++ b/commands/cloop.js
@@ -1,7 +1,8 @@
 const { getMessage } = require('../util/lang.js')
 module.exports = {
   execute: (c) => {
-    const subcmd = c.args.splice(0, 1)[0]
+    let subcmd;
+    if(c.args.length>=1) subcmd = c.args.splice(0, 1)[0].toLowerCase();
     switch (subcmd) {
       case 'add': {
         const rate = +(c.args.splice(0, 1)[0])
diff --git a/commands/help.js b/commands/help.js
index 31c0547..ce56004 100644
--- a/commands/help.js
+++ b/commands/help.js
@@ -65,7 +65,8 @@ const printHelp = (c) => {
 }
 
 const printCmdHelp = (c) => {
-  const cmd = c.args[0]
+  let cmd;
+  if(c.args.length>=1) cmd = c.args[0].toLowerCase();
   if (!cmds[cmd] || (cmds[cmd].hidden && c.type !== 'console')) {
     c.reply({ text: getMessage(c.lang, 'command.help.noCommand') })
     return
diff --git a/commands/settings.js b/commands/settings.js
index 2138edd..54a1e3a 100644
--- a/commands/settings.js
+++ b/commands/settings.js
@@ -17,7 +17,8 @@ module.exports = {
       })
       return
     }
-    const subcmd = c.args.splice(0, 1)[0]
+    let subcmd;
+    if(c.args.length>=1) subcmd = c.args.splice(0, 1)[0].toLowerCase();
     switch (subcmd) {
       case 'set':{
         const allowedKeys = ['colorPrimary', 'colorSecondary', 'lang']