diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 2a09127..f0eaa8d 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -51,7 +51,7 @@
           <entry key="csv" value="9" />
           <entry key="gitignore" value="12" />
           <entry key="md" value="141" />
-          <entry key="py" value="3949" />
+          <entry key="py" value="3952" />
           <entry key="sh" value="5" />
         </counts>
       </usages-collector>
@@ -61,7 +61,7 @@
           <entry key="Dockerfile" value="81" />
           <entry key="Markdown" value="141" />
           <entry key="PLAIN_TEXT" value="21" />
-          <entry key="Python" value="3949" />
+          <entry key="Python" value="3952" />
         </counts>
       </usages-collector>
     </session>
@@ -92,13 +92,13 @@
       <file pinned="false" current-in-tab="true">
         <entry file="file://$PROJECT_DIR$/serve.py">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="278">
-              <caret line="153" column="43" selection-start-line="153" selection-start-column="43" selection-end-line="153" selection-end-column="43" />
+            <state relative-caret-position="288">
+              <caret line="146" column="20" selection-start-line="146" selection-start-column="10" selection-end-line="146" selection-end-column="20" />
               <folding>
                 <element signature="e#18#46#0" expanded="true" />
-                <marker date="1588412045814" expanded="true" signature="1167:1170" ph="..." />
-                <marker date="1588412045814" expanded="true" signature="3335:3337" ph="..." />
-                <marker date="1588412045814" expanded="true" signature="4076:4808" ph="..." />
+                <marker date="1588412268440" expanded="true" signature="1167:1170" ph="..." />
+                <marker date="1588412268440" expanded="true" signature="3335:3337" ph="..." />
+                <marker date="1588412268440" expanded="true" signature="4076:4808" ph="..." />
               </folding>
             </state>
           </provider>
@@ -248,7 +248,7 @@
   <component name="PropertiesComponent">
     <property name="WebServerToolWindowFactoryState" value="false" />
     <property name="aspect.path.notification.shown" value="true" />
-    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1588412109166" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1588412333754" />
     <property name="go.gopath.indexing.explicitly.defined" value="true" />
     <property name="nodejs_interpreter_path.stuck_in_default_project" value="undefined stuck path" />
     <property name="nodejs_npm_path_reset_for_default_project" value="true" />
@@ -289,15 +289,16 @@
       <option name="presentableId" value="Default" />
       <updated>1588152877746</updated>
       <workItem from="1588152880522" duration="16973000" />
-      <workItem from="1588319878551" duration="34777000" />
+      <workItem from="1588319878551" duration="35034000" />
     </task>
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="51750000" />
+    <option name="totallyTimeSpent" value="52007000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="0" y="0" width="1280" height="800" extended-state="0" />
+    <editor active="true" />
     <layout>
       <window_info id="Designer" order="0" />
       <window_info id="UI Designer" order="1" />
@@ -439,13 +440,13 @@
     </entry>
     <entry file="file://$PROJECT_DIR$/serve.py">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="278">
-          <caret line="153" column="43" selection-start-line="153" selection-start-column="43" selection-end-line="153" selection-end-column="43" />
+        <state relative-caret-position="288">
+          <caret line="146" column="20" selection-start-line="146" selection-start-column="10" selection-end-line="146" selection-end-column="20" />
           <folding>
             <element signature="e#18#46#0" expanded="true" />
-            <marker date="1588412045814" expanded="true" signature="1167:1170" ph="..." />
-            <marker date="1588412045814" expanded="true" signature="3335:3337" ph="..." />
-            <marker date="1588412045814" expanded="true" signature="4076:4808" ph="..." />
+            <marker date="1588412268440" expanded="true" signature="1167:1170" ph="..." />
+            <marker date="1588412268440" expanded="true" signature="3335:3337" ph="..." />
+            <marker date="1588412268440" expanded="true" signature="4076:4808" ph="..." />
           </folding>
         </state>
       </provider>
diff --git a/serve.py b/serve.py
index 5b901ca..ad28763 100644
--- a/serve.py
+++ b/serve.py
@@ -151,6 +151,7 @@ def predict(job, seq):
 	# transform data to be supervised learning
 	lag = 4
 	supervised = timeseries_to_supervised(diff_values, lag)
+	print(supervised)
 	supervised_values = supervised.values[batch_size:]
 
 	test = supervised_values
@@ -193,17 +194,17 @@ class MyHandler(BaseHTTPRequestHandler):
 			self.wfile.write(bytes("pong", "utf-8"))
 
 		elif req.path == "/predict":
-			#try:
-			job = query.get('job')[0]
-			seq = query.get('seq')[0]
-			msg = {'code': 0, 'error': ""}
+			try:
+				job = query.get('job')[0]
+				seq = query.get('seq')[0]
+				msg = {'code': 0, 'error': ""}
 
-			pred, success = predict(job, int(seq))
+				pred, success = predict(job, int(seq))
 
-			if not success:
-				msg = {'code': 2, 'error': "Job " + job + " not exist"}
-		#except Exception as e:
-			msg = {'code': 1, 'error': str(e)}
+				if not success:
+					msg = {'code': 2, 'error': "Job " + job + " not exist"}
+			except Exception as e:
+				msg = {'code': 1, 'error': str(e)}
 
 			self.send_response(200)
 			self.send_header('Content-type', 'application/json')