diff --git a/src/equipment/__pycache__/model.cpython-311.pyc b/src/equipment/__pycache__/model.cpython-311.pyc
index 7b84e7e..765df7e 100644
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diff --git a/src/equipment/__pycache__/router.cpython-311.pyc b/src/equipment/__pycache__/router.cpython-311.pyc
index 9b45157..f8e1b4d 100644
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diff --git a/src/equipment/__pycache__/schema.cpython-311.pyc b/src/equipment/__pycache__/schema.cpython-311.pyc
index 49fd306..46c3bba 100644
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diff --git a/src/equipment/__pycache__/service.cpython-311.pyc b/src/equipment/__pycache__/service.cpython-311.pyc
index 0560491..3e0e7b3 100644
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diff --git a/src/equipment/router.py b/src/equipment/router.py
index 2dfa7b0..c845735 100644
--- a/src/equipment/router.py
+++ b/src/equipment/router.py
@@ -82,12 +82,17 @@ async def simulate_equipment(db_session: DbSession, assetnum: str):
     """
 
     async def event_generator():
+        # notify start of checking
+        yield f"data: {json.dumps({'status':'started','step':'checking update','message':'Checking and updating initial data'})}\n\n"
+
         try:
              await update_initial_simulation_data(db_session=db_session, assetnum=assetnum)
+             yield f"data: {json.dumps({'status':'completed','step':'checking update','message':'Initial data check completed'})}\n\n"
         except Exception as e:
              # Log error but proceed? Or maybe yield an error? 
              # For now, we proceed as this is an enhancement check.
              print(f"Update simulation data failed: {e}")
+             yield f"data: {json.dumps({'status':'error','step':'checking update','message':f'Update simulation data failed: {str(e)}'})}\n\n"
 
         # notify start of prediksi
         yield f"data: {json.dumps({'status':'started','step':'prediksi','message':'Starting prediksi'})}\n\n"
@@ -106,7 +111,7 @@ async def simulate_equipment(db_session: DbSession, assetnum: str):
         yield f"data: {json.dumps({'status':'started','step':'eac','message':'Starting EAC calculation'})}\n\n"
         try:
             eac = Eac()
-            hasil_eac = await eac.hitung_eac_equipment(assetnum=assetnum)
+            hasil_eac = eac.hitung_eac_equipment(assetnum=assetnum)
         except Exception as exc:
             yield f"data: {json.dumps({'status':'error','step':'eac','message':str(exc)})}\n\n"
             return
@@ -157,7 +162,7 @@ async def simulate_all_equipment(db_session: DbSession):
                 await prediksi_main(assetnum=assetnum)
                 # EAC
                 eac = Eac()
-                await eac.hitung_eac_equipment(assetnum=assetnum)
+                eac.hitung_eac_equipment(assetnum=assetnum)
                 success_count += 1
             except Exception as e:
                 error_count += 1
diff --git a/src/modules/equipment/Prediksi.py b/src/modules/equipment/Prediksi.py
index c6857ac..b9cf0ca 100644
--- a/src/modules/equipment/Prediksi.py
+++ b/src/modules/equipment/Prediksi.py
@@ -711,9 +711,13 @@ class Prediksi:
                 return
             # Mendapatkan tahun proyeksi dari DB
             par_tahun_target = self.__get_param(assetnum)
+            
+            if par_tahun_target is None:
+                raise ValueError(f"Asset {assetnum} not found in master data (lcc_ms_equipment_data).")
 
             # Tahun proyeksi
-            future_years = list(range(df["year"].max() + 1, par_tahun_target + 1))
+            current_max_year = int(df["year"].max()) if not df.empty and not pd.isna(df["year"].max()) else 2024
+            future_years = list(range(current_max_year + 1, int(par_tahun_target) + 1))
             print("future_years", future_years)
             # Hasil prediksi
             predictions = {"year": future_years}
diff --git a/src/modules/equipment/__pycache__/Prediksi.cpython-311.pyc b/src/modules/equipment/__pycache__/Prediksi.cpython-311.pyc
index 5a7408a..e8f9e3a 100644
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diff --git a/src/modules/equipment/__pycache__/insert_actual_data.cpython-311.pyc b/src/modules/equipment/__pycache__/insert_actual_data.cpython-311.pyc
index d34bf99..43a0dc4 100644
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diff --git a/src/modules/equipment/__pycache__/run.cpython-311.pyc b/src/modules/equipment/__pycache__/run.cpython-311.pyc
index f5f23d6..cd997a8 100644
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diff --git a/src/plant_transaction_data/__pycache__/schema.cpython-311.pyc b/src/plant_transaction_data/__pycache__/schema.cpython-311.pyc
index 79f43f8..aaf073c 100644
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