diff --git a/main.py b/main.py
index 8d82a68..9f92c5e 100644
--- a/main.py
+++ b/main.py
@@ -7,15 +7,15 @@ import sys
 import subprocess
 from operator import itemgetter
 from urllib.parse import unquote
-from tinydb.operations import set
+from tinydb.operations import set, delete
 
 def get_files(url: str) -> []:
     if (url in ["/../", "../"]):
         return ([])
     response = requests.get(url)
-    # print("connection:", response.reason)
     if (response.status_code != 200):
-        exit
+        print("connection:", response.reason)
+        sys.exit(1)
     soup = BeautifulSoup(response.text, 'html.parser')
     files = []
     for element in soup.findAll("a"):
@@ -45,7 +45,7 @@ def open_vlc(url: str) -> None:
     with open(os.devnull, 'wb') as devnull:
         subprocess.check_call(['vlc', url], stdout=devnull, stderr=subprocess.STDOUT)
 
-def preview(filename: str) -> str:
+def files_preview(filename: str) -> str:
     if (not filename.endswith("/")):
         return (None)
     files = get_files(url + filename)
@@ -62,7 +62,7 @@ def files_navigator():
     while True:
         cookies_table.update(set("last_path", get_uri(url)), query.id == "0")
         files = get_files(url)
-        terminal_menu = TerminalMenu(get(files, "name"), preview_command=preview, preview_size=0.3, show_search_hint=True, title=get_uri(url))
+        terminal_menu = TerminalMenu(get(files, "name"), preview_command=files_preview, preview_size=0.3, show_search_hint=True, title=get_uri(url))
         file_choose = terminal_menu.show()
         if (file_choose == None):
             sys.exit(0)
@@ -77,13 +77,13 @@ def files_navigator():
 def add_site():
     print("add a site:")
     site = {}
-    site.update({"url without protocol (ip:port)": input("url:")})
+    site.update({"url": input("url without protocol (ip:port):")})
     site.update({"user": input("user(leave blank):")})
     site.update({"password": input("password(leave blank):")})
     site.update({"id": len(sites_table.all())})
-    name = input("name[url] :")
+    name = input(f"name[{str(len(sites_table.all()))}] :")
     if (name == ""):
-        name = site.get("url")
+        name = str(len(sites_table.all()))
     site.update({"name": name})
     sites_table.insert(site)
 
@@ -97,6 +97,31 @@ def set_url(site):
     else:
         url = f"http://{site.get('url')}/";
 
+def config_preview(site_name:str):
+    id = int(site_name.split(": ")[0])
+    site = sites_table.get(query.id == id)
+    str = f"""
+    url: {site.get('url')}
+    user: {site.get('user')}
+    password: {site.get('password')}
+    """
+    return (str)
+
+def sites_deleter():
+    lst = []
+    for i in sites_table.all():
+        lst.append(f"{str(i.get('id'))}: {i.get('name')}")
+    terminal_menu = TerminalMenu(lst, show_search_hint=True, preview_title="delete", preview_command=config_preview)
+    choose = terminal_menu.show()
+    if (choose == None):
+        return (1)
+    site_name = lst[choose]
+    id = int(site_name.split(": ")[0])
+    sites_table.remove(query.id == id)
+    if (cookies_table.get(query.id == "0").get("last_site") == id):
+        cookies_table.update(set("last_site", query.id == choose.get("id")))
+        cookies_table.update(set("last_path", query.id == choose.get("id")))
+
 def sites_navigator():
     if (len(sites_table.all()) == 0):
         add_site()
@@ -106,14 +131,18 @@ def sites_navigator():
         set_url(last_site)
         files_navigator()
     while True:
-        terminal_menu = TerminalMenu(get(sites_table.all(), "name") + ["", "add", "edit", "remove"], skip_empty_entries=True, show_search_hint=True)
+        terminal_menu = TerminalMenu(get(sites_table.all(), "name") + ["", "add", "edit", "delete"], skip_empty_entries=True, show_search_hint=True)
         choose = terminal_menu.show()
+        if (choose == None):
+            return (1)
         if (choose == len(sites_table.all()) + 1):
             add_site();
         elif (choose == len(sites_table.all()) + 2):
             pass
         elif (choose == len(sites_table.all()) + 3):
-            pass
+            sites_deleter()
+            sites_navigator()
+            return
         else:
             set_url(sites_table.all()[choose])
             files_navigator()