diff --git a/Cargo.lock b/Cargo.lock
index 1faf9af..0f2c767 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -999,6 +999,7 @@ name = "common"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "monotree",
  "reqwest 0.11.27",
  "risc0-zkvm",
  "rpc_primitives",
diff --git a/common/Cargo.toml b/common/Cargo.toml
index c2cda7d..6fe2228 100644
--- a/common/Cargo.toml
+++ b/common/Cargo.toml
@@ -9,6 +9,7 @@ thiserror.workspace = true
 serde_json.workspace = true
 serde.workspace = true
 reqwest.workspace = true
+monotree.workspace = true
 risc0-zkvm = { git = "https://github.com/risc0/risc0.git", branch = "release-1.2" }
 
 [dependencies.rpc_primitives]
diff --git a/common/src/lib.rs b/common/src/lib.rs
index 121c403..0ebfcdf 100644
--- a/common/src/lib.rs
+++ b/common/src/lib.rs
@@ -50,6 +50,8 @@ pub enum ExecutionFailureKind {
     AmountMismatchError,
     #[error("Sequencer client error: {0:?}")]
     SequencerClientError(#[from] SequencerClientError),
+    #[error("Datebase returned error : {0:?}")]
+    MonoTreeError(#[from] monotree::Errors),
 }
 
 impl ExecutionFailureKind {
diff --git a/node_core/src/sequencer_client/mod.rs b/node_core/src/sequencer_client/mod.rs
index 8cbf9fd..e68872f 100644
--- a/node_core/src/sequencer_client/mod.rs
+++ b/node_core/src/sequencer_client/mod.rs
@@ -1,11 +1,7 @@
 use accounts::account_core::Account;
 use anyhow::Result;
 use common::{SequencerClientError, SequencerRpcError};
-use json::{
-    GetBlockDataRequest, GetBlockDataResponse, GetGenesisIdRequest, GetGenesisIdResponse,
-    RegisterAccountRequest, RegisterAccountResponse, SendTxRequest, SendTxResponse,
-    SequencerRpcRequest, SequencerRpcResponse,
-};
+use json::{SendTxRequest, SendTxResponse, SequencerRpcRequest, SequencerRpcResponse};
 use k256::elliptic_curve::group::GroupEncoding;
 use reqwest::Client;
 use rpc_primitives::requests::{
diff --git a/node_rpc/src/process.rs b/node_rpc/src/process.rs
index 5aa3b20..0168d29 100644
--- a/node_rpc/src/process.rs
+++ b/node_rpc/src/process.rs
@@ -16,18 +16,21 @@ use rpc_primitives::requests::{
     RegisterAccountRequest, RegisterAccountResponse,
 };
 
-use crate::types::rpc_structs::{
-    ExecuteScenarioMultipleSendRequest, ExecuteScenarioMultipleSendResponse,
-    ExecuteScenarioSplitRequest, ExecuteScenarioSplitResponse, ExecuteSubscenarioRequest,
-    ExecuteSubscenarioResponse, ShowAccountPublicBalanceRequest, ShowAccountPublicBalanceResponse,
-    ShowAccountUTXORequest, ShowAccountUTXOResponse, ShowTransactionRequest,
-    ShowTransactionResponse, UTXOShortEssentialStruct, WriteDepositPublicBalanceRequest,
-    WriteDepositPublicBalanceResponse, WriteMintPrivateUTXOMultipleAssetsRequest,
-    WriteMintPrivateUTXOMultipleAssetsResponse, WriteMintPrivateUTXORequest,
-    WriteMintPrivateUTXOResponse, WriteSendDeshieldedBalanceRequest,
-    WriteSendDeshieldedUTXOResponse, WriteSendPrivateUTXORequest, WriteSendPrivateUTXOResponse,
-    WriteSendShieldedUTXORequest, WriteSendShieldedUTXOResponse, WriteSendSplitUTXOResponse,
-    WriteSplitUTXORequest,
+use crate::types::{
+    err_rpc::cast_common_execution_error_into_rpc_error,
+    rpc_structs::{
+        ExecuteScenarioMultipleSendRequest, ExecuteScenarioMultipleSendResponse,
+        ExecuteScenarioSplitRequest, ExecuteScenarioSplitResponse, ExecuteSubscenarioRequest,
+        ExecuteSubscenarioResponse, ShowAccountPublicBalanceRequest,
+        ShowAccountPublicBalanceResponse, ShowAccountUTXORequest, ShowAccountUTXOResponse,
+        ShowTransactionRequest, ShowTransactionResponse, UTXOShortEssentialStruct,
+        WriteDepositPublicBalanceRequest, WriteDepositPublicBalanceResponse,
+        WriteMintPrivateUTXOMultipleAssetsRequest, WriteMintPrivateUTXOMultipleAssetsResponse,
+        WriteMintPrivateUTXORequest, WriteMintPrivateUTXOResponse,
+        WriteSendDeshieldedBalanceRequest, WriteSendDeshieldedUTXOResponse,
+        WriteSendPrivateUTXORequest, WriteSendPrivateUTXOResponse, WriteSendShieldedUTXORequest,
+        WriteSendShieldedUTXOResponse, WriteSendSplitUTXOResponse, WriteSplitUTXORequest,
+    },
 };
 
 use super::{respond, types::err_rpc::RpcErr, JsonHandler};
diff --git a/node_rpc/src/types/err_rpc.rs b/node_rpc/src/types/err_rpc.rs
index 3f44956..9eafb93 100644
--- a/node_rpc/src/types/err_rpc.rs
+++ b/node_rpc/src/types/err_rpc.rs
@@ -74,5 +74,6 @@ pub fn cast_common_execution_error_into_rpc_error(comm_exec_err: ExecutionFailur
         ExecutionFailureKind::SequencerClientError(seq_cli_err) => {
             cast_seq_client_error_into_rpc_error(seq_cli_err)
         }
+        ExecutionFailureKind::MonoTreeError(_) => RpcError::new_internal_error(None, &error_string),
     }
 }