Fix

src/bots/approved_bot/services/book_cache/mod.rs

@@ -87,6 +87,7 @@ pub async fn download_file(
     }))
 }
 
+
 pub async fn download_file_by_link(
     filename: String,
     link: String,

src/bots_manager/axum_server.rs

@@ -66,8 +66,14 @@ pub async fn start_axum_server(stop_signal: Arc<AtomicBool>) {
 
         match serde_json::from_str::<Update>(&input) {
             Ok(mut update) => {
-                if let UpdateKind::Error(value) = &mut update.kind {
-                    *value = serde_json::from_str(&input).unwrap_or_default();
+                if let UpdateKind::Error(_) = &mut update.kind {
+                    log::warn!(
+                        "Cannot parse an update.\nValue: {}\n\
+                         This is a bug in teloxide-core, please open an issue here: \
+                         https://github.com/teloxide/teloxide/issues.",
+                        input
+                    );
+                    return StatusCode::OK;
                 }
 
                 if let Err(err) = tx.send(Ok(update)) {

src/bots_manager/mod.rs

@@ -141,7 +141,7 @@ impl BotsManager {
 
                     if webhook_info.last_error_message.is_some() {
                         log::error!(
-                            "Error getting webhook info: {:?}",
+                            "Webhook last error: {:?}",
                             webhook_info.last_error_message
                         );