diff --git a/src/Global_Var.py b/src/Global_Var.py
index cdee7c800aeddb5684deddee55a25ef1031b10ad..69e6dcf3c6cafdb35669d49e42891f9cb3423bf6 100755
--- a/src/Global_Var.py
+++ b/src/Global_Var.py
@@ -114,8 +114,6 @@ class Global_Var():
         """
         self.db = self.client[name]
 
-        millis = int(round(time.time() * 1000))
-
         if ('labels' in self.db.list_collection_names()):
             col = pymongo.collection.Collection(self.db, 'labels')
             col.create_index([("T", 1)])
diff --git a/src/Modules/General/callbacks.py b/src/Modules/General/callbacks.py
index b977683da557e5de078a42e9d06b8d0bd823914a..d7a98d44d2eff1e266de9929caed209e74ab763c 100755
--- a/src/Modules/General/callbacks.py
+++ b/src/Modules/General/callbacks.py
@@ -116,7 +116,7 @@ class callbacks(callbacksOp):
                                             mode='lines+markers',
                                             text=list(super.xAxisLabel),
                                             customdata=list(super.SynapseGraphY[layer]),
-                                            hovertemplate="%{text} <br> <b>%{customdata}</b> <br> <b>Max</b> "+str(super.MaxSynapse[layer])))
+                                            hovertemplate="<span style='color:white;''>%{text} <br> <b>%{customdata}</b> <br> <b>Max</b> "+str(super.MaxSynapse[layer])+"<\span>"))
                                 if(f == "Potentials"):
                                     if(layer not in super.PotentialGraphY):
                                         super.PotentialGraphY[layer] = deque(maxlen=100)
@@ -761,7 +761,6 @@ class callbacks(callbacksOp):
                             if (str(l["Label"]) != str(a["Input"])):
                                 loss += 1
 
-                print(loss)
                 return round((loss*100) / len(spikes), 2)
             # ---------------------------------------------------------------------
 
diff --git a/src/Modules/General/layout.py b/src/Modules/General/layout.py
index 997ad787b59b2609822c48f61ad2c3b5ccb11c00..504b76e8c4df45ec407f82c1cbfc8429a7543302 100755
--- a/src/Modules/General/layout.py
+++ b/src/Modules/General/layout.py
@@ -136,16 +136,16 @@ class layout(layoutOp):
                                                 id='GeneralGraphFilter',
                                                 options=[{'label': "Spikes", 'value': "Spikes"}, {'label': "Synapses activity", 'value': "Synapses"}, {
                                                     'label': "Neurons potential", 'value': "Potentials"}],
-                                                value=['Spikes'],
+                                                value=["Spikes","Synapses","Potentials"],
                                                 multi=True,
                                                 style={"minWidth": "20%", "marginLeft": "10px", "textAlign": "start"}),
                                                 # Layers filter
                                                 dcc.Dropdown(
                                                 id='GeneralLayerFilter',
                                                 options=[{'label': str(i), 'value': str(i)} for i in (
-                                                    i for i in self.g.Layer_Neuron if i != "Input")],
+                                                    i for i in self.g.Layer_Neuron if ("Input" not in i and "pool" not in i))],
                                                 value=[str(i) for i in (
-                                                    i for i in self.g.Layer_Neuron if i != "Input")],
+                                                    i for i in self.g.Layer_Neuron if ("Input" not in i and "pool" not in i))],
                                                 multi=True,
                                                 style={"minWidth": "20%", "marginLeft": "15px", "textAlign": "start"})], className="d-flex", style={"paddingLeft": "20px", 'width': '100%'})
                                         ], className="col-12")
diff --git a/src/Modules/Synapse/callbacks.py b/src/Modules/Synapse/callbacks.py
index 0e4744278d2af0ece842b6566562cfc621a65456..6d73376175a3a3322817a0bae883610728ef8a3e 100755
--- a/src/Modules/Synapse/callbacks.py
+++ b/src/Modules/Synapse/callbacks.py
@@ -680,15 +680,18 @@ class callbacks(callbacksOp):
             # MongoDB---------------------
             col = pymongo.collection.Collection(g.db, 'synapseWeightFinal')
 
-            globalSynapseWeights = col.aggregate([{"$match": { "L": {"$eq": layer}}}])
+            globalSynapseWeights = col.aggregate([{"$match": { "_id.L": {"$eq": layer}}}])
 
             # ToDF----------------------
             globalSynapseWeights = pd.DataFrame(list(globalSynapseWeights))
-            globalSynapseWeights["To"] = globalSynapseWeights["_id"].map(lambda i: i["To"])
-            globalSynapseWeights["C"] = globalSynapseWeights["_id"].map(lambda i: i["C"])
-            globalSynapseWeights["x"] = globalSynapseWeights["_id"].map(lambda i: i["index"]["x"])
-            globalSynapseWeights["y"] = globalSynapseWeights["_id"].map(lambda i: i["index"]["y"])
-            globalSynapseWeights.drop(columns=["_id"])
+
+            if(not globalSynapseWeights.empty):
+                globalSynapseWeights["To"] = globalSynapseWeights["_id"].map(lambda i: i["To"])
+                globalSynapseWeights["C"] = globalSynapseWeights["_id"].map(lambda i: i["C"])
+                globalSynapseWeights["x"] = globalSynapseWeights["_id"].map(lambda i: i["index"]["x"])
+                globalSynapseWeights["y"] = globalSynapseWeights["_id"].map(lambda i: i["index"]["y"])
+                globalSynapseWeights["L"] = globalSynapseWeights["_id"].map(lambda i: i["L"])
+                globalSynapseWeights.drop(columns=["_id"])
             # ----------------------------
             return globalSynapseWeights
 
diff --git a/src/Modules/Synapse/spark.py b/src/Modules/Synapse/spark.py
index 8a2f89b2b5cbbda60928be0a06f4f4ac80a5a8f2..8bc9edf62640b028493b194b1375eb5677627e59 100755
--- a/src/Modules/Synapse/spark.py
+++ b/src/Modules/Synapse/spark.py
@@ -35,7 +35,7 @@ class spark(sparkOp):
                 # --------------------------------------------------
                 df = self.g.sparkSession.read.format("com.mongodb.spark.sql") \
                     .option("spark.mongodb.input.uri", self.MONGODBURL + self.g.name + "."+self.DOCUMENT_NAME+"?authSource=admin&readPreference=primaryPreferred") \
-                    .option("pipeline", "[{ $sort: { T: 1 } },{$group : { _id : {To:'$To', C:'$C', index:'$index' }, L : { $last: '$L'}, T : { $last: '$T'},V : { $last: '$V'} } }]")
+                    .option("pipeline", "[{ $sort: { T: 1 } },{$group : { _id : {To:'$To', C:'$C', index:'$index', L:'$L'}, T : { $last: '$T'},V : { $last: '$V'} } }]")
 
                 df = df.load()
             
@@ -54,7 +54,7 @@ class spark(sparkOp):
                 col.create_index([("_id", 1)])
                 col.create_index([("_id.To", 1),("_id.C", 1)])
                 col.create_index([("T", 1)])
-                col.create_index([("index", 1)])
+                col.create_index([("_id.index", 1)])
                 col.create_index([("V", 1)])
 
                 # --------------------------------------------------------