diff --git a/src/ingester/persist/mod.rs b/src/ingester/persist/mod.rs
index 2d64cd1f..e1baecb7 100644
--- a/src/ingester/persist/mod.rs
+++ b/src/ingester/persist/mod.rs
@@ -27,10 +27,12 @@ use sea_orm::{
     sea_query::OnConflict, ColumnTrait, ConnectionTrait, DatabaseBackend, DatabaseTransaction,
     EntityTrait, Order, QueryFilter, QueryOrder, QuerySelect, QueryTrait, Set, Statement,
 };
+// Added imports for missing account logic
+use std::{cmp::max, collections::HashMap, collections::HashSet};
 use solana_pubkey::{pubkey, Pubkey};
 use solana_signature::Signature;
 use sqlx::types::Decimal;
-use std::{cmp::max, collections::HashMap};
+
 
 pub mod indexed_merkle_tree;
 pub mod persisted_indexed_merkle_tree;
@@ -199,8 +201,13 @@ pub async fn persist_state_update(
         }
     }
 
+    // ***************************************************************
+    // * CRITICAL ORDER CHANGE: Transactions moved to the end
+    // ***************************************************************
+
     let transactions_vec = transactions.into_iter().collect::<Vec<_>>();
 
+    // 1. INSERT MAIN TRANSACTIONS (parent table: transactions)
     debug!("Persisting transaction metadatas...");
     let (compression_transactions, non_compression_transactions): (Vec<_>, Vec<_>) =
         transactions_vec
@@ -222,12 +229,14 @@ pub async fn persist_state_update(
         persist_transactions(txn, chunk).await?;
     }
 
+    // 2. INSERT ACCOUNT-TRANSACTION LINKS (child table: account_transactions)
     debug!("Persisting account transactions...");
     let account_transactions = account_transactions.into_iter().collect::<Vec<_>>();
     for chunk in account_transactions.chunks(MAX_SQL_INSERTS) {
+        // This function now uses logic to insert missing accounts!
         persist_account_transactions(txn, chunk).await?;
     }
-
+    
     persist_batch_events(txn, batch_merkle_tree_events, &tree_info_cache).await?;
 
     metric! {
@@ -279,6 +288,11 @@ pub struct EnrichedTokenAccount {
     pub hash: Hash,
 }
 
+#[derive(Debug, Clone, PartialEq, Eq, sea_orm::FromQueryResult)]
+struct MinimalAccountHash {
+    hash: Vec<u8>,
+}
+
 #[derive(Debug)]
 enum AccountType {
     Account,
@@ -595,10 +609,109 @@ async fn persist_transactions(
     Ok(())
 }
 
+// ***************************************************************
+// * NEW HELPER FUNCTIONS FOR MISSING ACCOUNT HANDLING
+// ***************************************************************
+async fn get_missing_hashes(
+    txn: &DatabaseTransaction,
+    all_hashes: Vec<Hash>,
+) -> Result<Vec<Hash>, IngesterError> {
+    if all_hashes.is_empty() {
+        return Ok(Vec::new());
+    }
+
+    // 1. Check which hashes EXIST in the database
+    let existing_hashes: Vec<Vec<u8>> = accounts::Entity::find()
+        .select_only()
+        .column(accounts::Column::Hash)
+        .filter(accounts::Column::Hash.is_in(all_hashes.iter().map(|h| h.to_vec())))
+        // Changed into_model() to into_model::<MinimalAccountHash>()
+        .into_model::<MinimalAccountHash>() 
+        .all(txn)
+        .await
+        .map_err(|e| IngesterError::DatabaseError(format!("Failed to query existing accounts: {}", e)))?
+        .into_iter()
+        .map(|model| model.hash) // <-- Now the type 'model' is explicitly known as MinimalAccountHash
+        .collect();
+
+    let existing_set: HashSet<Vec<u8>> = existing_hashes.into_iter().collect();
+
+    // 2. Find missing hashes
+    let missing_hashes: Vec<Hash> = all_hashes.into_iter()
+        .filter(|hash| !existing_set.contains(&hash.to_vec()))
+        .collect();
+
+    Ok(missing_hashes)
+}
+
+async fn persist_missing_accounts(
+    txn: &DatabaseTransaction,
+    missing_hashes: &[Hash],
+) -> Result<(), IngesterError> {
+    if missing_hashes.is_empty() {
+        return Ok(());
+    }
+
+    let missing_account_models: Vec<accounts::ActiveModel> = missing_hashes
+        .iter()
+        .map(|hash| {
+            // We insert minimal, safe data for NOT NULL columns.
+            accounts::ActiveModel {
+                hash: Set(hash.to_vec()),
+                owner: Set(vec![0; 32]), // Example empty bytea value (32 bytes)
+                tree: Set(vec![0; 32]),  // Example empty bytea value
+                leaf_index: Set(0 as i64),
+                slot_created: Set(0 as i64),
+                spent: Set(true), // Mark as spent/incomplete
+                lamports: Set(Decimal::from(0)),
+                nullified_in_tree: Set(false),
+                in_output_queue: Set(false),
+                // Optional values (Option) default to Default::default() (None)
+                ..Default::default()
+            }
+        })
+        .collect();
+
+    log::warn!("Inserting {} missing stub accounts to satisfy FK constraint.", missing_hashes.len());
+    
+    // We use insert_many with DO NOTHING to avoid conflicts in case of concurrent insertion
+    let query = accounts::Entity::insert_many(missing_account_models)
+        .on_conflict(
+            OnConflict::column(accounts::Column::Hash)
+                .do_nothing()
+                .to_owned(),
+        )
+        .build(txn.get_database_backend());
+    
+    txn.execute(query).await?;
+    
+    Ok(())
+}
+
+
+// ***************************************************************
+// * MODIFIED persist_account_transactions FUNCTION
+// ***************************************************************
+
 async fn persist_account_transactions(
     txn: &DatabaseTransaction,
     account_transactions: &[AccountTransaction],
 ) -> Result<(), IngesterError> {
+    
+    // --- STEP 1: COLLECTING AND VERIFYING ACCOUNT HASHES ---
+    let all_hashes: Vec<Hash> = account_transactions.iter().map(|tx| tx.hash.clone()).collect();
+    
+    // Get unique hashes for verification
+    let unique_hashes: Vec<Hash> = all_hashes.into_iter().collect::<HashSet<_>>().into_iter().collect();
+
+    let missing_hashes = get_missing_hashes(txn, unique_hashes).await?;
+    
+    // --- STEP 2: INSERT MISSING STUB ACCOUNTS ---
+    // This prevents the "account_transactions_hash_fk" foreign key violation
+    persist_missing_accounts(txn, &missing_hashes).await?; 
+
+    // --- STEP 3: INSERT LINKS (ORIGINAL LOGIC) ---
+
     let account_transaction_models = account_transactions
         .iter()
         .map(|transaction| account_transactions::ActiveModel {