diff --git a/js/main.js b/js/main.js
index 65517ff..0994977 100644
--- a/js/main.js
+++ b/js/main.js
@@ -302,6 +302,7 @@ function getInfoBits(){
 *		 https://github.com/waidotto/strong-qr-decoder
 ***/
 function loadTxt2Array(lines) {
+	console.info(lines)
     let sz = lines.length;
 
 	var data = [];
@@ -332,7 +333,7 @@ function loadTxt2Array(lines) {
 					break;
 
 				default:
-					throw `Error invalid text QR caracters: ${lines[i][j]}`
+					throw `Error invalid text QR caracter: ${lines[i][j]}; from: ${i}x${j}`
 			}
 		}
     }