Error Fix

app.py

@@ -568,6 +568,8 @@ def create_test_html_visualization():
 
 def flush_databases():
     """Flush ChromaDB and SQLite databases"""
+    global document_assistant
+    global current_context
     result = []
     
     # Flush SQLite database
@@ -598,14 +600,12 @@ def flush_databases():
         else:
             # Even if reset fails, we can still reinitialize the document assistant
             # This is a workaround that creates a fresh instance
-            global document_assistant
             document_assistant = DocumentAssistant()
             result.append("⚠️ ChromaDB reset partially completed - created new instance")
     except Exception as e:
         result.append(f"❌ Error clearing ChromaDB: {str(e)}")
     
     # Reset current context
-    global current_context
     current_context = {
         "file_type": None,
         "file_name": None,