diff --git a/host/src/proof.rs b/host/src/proof.rs
index 46ade302..14824d94 100644
--- a/host/src/proof.rs
+++ b/host/src/proof.rs
@@ -63,7 +63,15 @@ impl ProofActor {
                 (key.chain_id, key.blockhash, key.proof_system as u8),
                 Box::new(&mut manager),
             )
-            .await?;
+            .await
+            .or_else(|e| {
+                if e.to_string().contains("no id found") {
+                    warn!("Task already cancelled or not yet started!");
+                    Ok(())
+                } else {
+                    Err::<(), HostError>(e.into())
+                }
+            })?;
         task.cancel();
         Ok(())
     }
diff --git a/host/src/server/api/v2/mod.rs b/host/src/server/api/v2/mod.rs
index fe8003bc..0cd5ae12 100644
--- a/host/src/server/api/v2/mod.rs
+++ b/host/src/server/api/v2/mod.rs
@@ -39,6 +39,7 @@ mod proof;
             TaskStatus,
             CancelStatus,
             PruneStatus,
+            Proof,
             Status,
         )
     ),