diff --git a/main b/main
index 9222e51..cc18806 100644
--- a/main
+++ b/main
@@ -38,7 +38,7 @@ def get_user(id):
                         (id,)).fetchone()
     conn.close()
     if post is None:
-        return "error"
+        return None
     return post
 
 def get_note(id):
@@ -47,7 +47,7 @@ def get_note(id):
                         (id,)).fetchone()
     conn.close()
     if post is None:
-        return "error"
+        return None
     return post
 
 def get_space(id):
@@ -75,7 +75,7 @@ def get_session(id):
                         (id,)).fetchone()
     conn.close()
     if post is None:
-        return "error"
+        return None
     return post
 
 def get_session_from_sessionid(id):
@@ -84,7 +84,7 @@ def get_session_from_sessionid(id):
                         (id,)).fetchone()
     conn.close()
     if post is None:
-        return "error"
+        return None
     return post
 
 def check_username_taken(username):
@@ -93,7 +93,7 @@ def check_username_taken(username):
                         (username.lower(),)).fetchone()
     conn.close()
     if post is None:
-        return "error"
+        return None
     return post["id"]
 
 # Disable CORS
@@ -170,7 +170,7 @@ async def apisignup():
         if len(password) < 14:
             return {}, 422
 
-        if not check_username_taken(username) == "error":
+        if not check_username_taken(username) == None:
             return {}, 409
 
         hashedpassword = generate_password_hash(password)
@@ -207,7 +207,7 @@ async def apilogin():
 
         check_username_thing = check_username_taken(username)
 
-        if check_username_thing == "error":
+        if check_username_thing == None:
             return {}, 401
 
         userID = check_username_taken(username)
@@ -335,7 +335,7 @@ async def apireadnote():
 
         note = get_note(noteId)
 
-        if (note != "error"):
+        if (note != None):
             if (user["id"] == note["creator"]):
                 contenttemplate = {
                     "content": note["content"]
@@ -363,7 +363,7 @@ async def apieditnote():
         if get_space(user["id"]) + len(content.encode("utf-8")) > int(MAX_STORAGE):
             return {}, 418
 
-        if (note != "error"):
+        if (note != None):
             if (user["id"] == note["creator"]):
                 conn = get_db_connection()
                 conn.execute("UPDATE notes SET content = ?, edited = ? WHERE id = ?", (content, str(time.time()), noteId))
@@ -393,7 +393,7 @@ async def apieditnotetitle():
         if get_space(user["id"]) + len(content.encode("utf-8")) > int(MAX_STORAGE):
             return {}, 418
 
-        if (note != "error"):
+        if (note != None):
             if (user["id"] == note["creator"]):
                 conn = get_db_connection()
                 conn.execute("UPDATE notes SET title = ?, edited = ? WHERE id = ?", (content, str(time.time()), noteId))
@@ -419,7 +419,7 @@ async def apiremovenote():
 
         note = get_note(noteId)
 
-        if (note != "error"):
+        if (note != None):
             if (user["id"] == note["creator"]):
                 conn = get_db_connection()
                 conn.execute("DELETE FROM notes WHERE id = ?", (noteId,))
@@ -495,7 +495,7 @@ async def apisessionsremove():
 
         session = get_session_from_sessionid(sessionId)
 
-        if (session != "error"):
+        if (session != None):
             if (user["id"] == session["id"]):
                 conn = get_db_connection()
                 conn.execute("DELETE FROM sessions WHERE sessionid = ?", (session["sessionid"],))