diff --git a/htdocs/app/Services/AstmMessageService.php b/htdocs/app/Services/AstmMessageService.php
index ea28677c..2b29daba 100644
--- a/htdocs/app/Services/AstmMessageService.php
+++ b/htdocs/app/Services/AstmMessageService.php
@@ -660,7 +660,12 @@ class AstmMessageService
         $final = [];
         foreach ($lines as $line) {
             if (!preg_match('/^[A-Z]\|/', $line)) {
-                $final[count($final)-1] .= $line;
+                if (isset($final[count($final)-1])) {
+                    $final[] = $line;
+                } else {
+                    $final[count($final)-1] .= $line;
+                }
+                
             } else {
                 $final[] = $line;
             }