Merge pull request #2726 from shaavan/issue2712

Log the error, when trying to forward the intercepted HTLC, but the channel is not found

Author: TheBlueMatt

lightning/src/ln/channelmanager.rs

@@ -4186,10 +4186,14 @@ where
 					err: format!("Channel with id {} for the passed counterparty node_id {} is still opening.",
 						next_hop_channel_id, next_node_id)
 				}),
-				None => return Err(APIError::ChannelUnavailable {
-					err: format!("Channel with id {} not found for the passed counterparty node_id {}",
-						next_hop_channel_id, next_node_id)
-				})
+				None => {
+					let error = format!("Channel with id {} not found for the passed counterparty node_id {}",
+						next_hop_channel_id, next_node_id);
+					log_error!(self.logger, "{} when attempting to forward intercepted HTLC", error);
+					return Err(APIError::ChannelUnavailable {
+						err: error
+					})
+				}
 			}
 		};