diff --git a/telegram-chat.rsc b/telegram-chat.rsc
index b1f7f99..5bfa31c 100644
--- a/telegram-chat.rsc
+++ b/telegram-chat.rsc
@@ -70,14 +70,14 @@
   :local Data false;
   :for I from=1 to=4 do={
     :if ($Data = false) do={
-      :do {
+      :onerror Err {
         :set Data ([ /tool/fetch check-certificate=yes-without-crl output=user \
           ("https://api.telegram.org/bot" . $TelegramTokenId . "/getUpdates?offset=" . \
           $TelegramChatOffset->0 . "&allowed_updates=%5B%22message%22%5D") as-value ]->"data");
         :set TelegramRandomDelay [ $MAX 0 ($TelegramRandomDelay - 1) ];
-      } on-error={
+      } do={
         :if ($I < 4) do={
-          $LogPrint debug $ScriptName ("Fetch failed, " . $I . ". try.");
+          $LogPrint debug $ScriptName ("Fetch failed, " . $I . ". try: " . $Err);
           :set TelegramRandomDelay [ $MIN 15 ($TelegramRandomDelay + 5) ];
           :delay (($I * $I) . "s");
         }