diff --git a/firmware/data/bottom.js b/firmware/data/bottom.js
index 62474ca..0c609c1 100644
--- a/firmware/data/bottom.js
+++ b/firmware/data/bottom.js
@@ -453,7 +453,7 @@ return null;
 }
 if (tcdata[0].ch1 > 0 || tcdata[0].ch2 > 0 || tcdata[0].ch3 > 0 || tcdata[0].ch4 > 0 ||
 tcdata[9].ch1 > 0 || tcdata[9].ch2 > 0 || tcdata[9].ch3 > 0 || tcdata[9].ch4 > 0) {
-showToast('Error: Values for ch1 to ch4 must be 0 for i=0 and i=9.', 'error');
+showToast('Error: Values for ch1 to ch4 must be 0 for the first and last entry.', 'error');
 return null;
 }
 var currentTime = {hour: new Date().getHours(), min: new Date().getMinutes()};
diff --git a/firmware/html/bottom.js b/firmware/html/bottom.js
index 189f7ba..20aa3af 100644
--- a/firmware/html/bottom.js
+++ b/firmware/html/bottom.js
@@ -563,7 +563,7 @@ function createJsonFromTable() {
     // Überprüft die Werte für ch1 bis ch4 bei i=0 und i=9
     if (tcdata[0].ch1 > 0 || tcdata[0].ch2 > 0 || tcdata[0].ch3 > 0 || tcdata[0].ch4 > 0 ||
         tcdata[9].ch1 > 0 || tcdata[9].ch2 > 0 || tcdata[9].ch3 > 0 || tcdata[9].ch4 > 0) {
-        showToast('Error: Values for ch1 to ch4 must be 0 for i=0 and i=9.', 'error');
+        showToast('Error: Values for ch1 to ch4 must be 0 for the first and last entry.', 'error');
         return null;
     }