Update db.py

this should fix issue https://github.com/minamotorin/twint/issues/3#issue-1125224774

twint/storage/db.py

@@ -252,7 +252,7 @@ def tweets(conn, Tweet, config):
                     Tweet.datestamp,
                     Tweet.timestamp,
                     Tweet.timezone,
-                    Tweet.place,
+                    str(Tweet.place),
                     Tweet.replies_count,
                     Tweet.likes_count,
                     Tweet.retweets_count,
@@ -261,7 +261,7 @@ def tweets(conn, Tweet, config):
                     Tweet.username,
                     Tweet.name,
                     Tweet.link,
-                    ",".join(Tweet.mentions),
+                    ",".join(str(x) for x in Tweet.mentions),
                     ",".join(Tweet.hashtags),
                     ",".join(Tweet.cashtags),
                     ",".join(Tweet.urls),
@@ -290,7 +290,7 @@ def tweets(conn, Tweet, config):
         if Tweet.reply_to:
             for reply in Tweet.reply_to:
                 query = 'INSERT INTO replies VALUES(?,?,?)'
-                cursor.execute(query, (Tweet.id, int(reply['user_id']), reply['username']))
+                cursor.execute(query, (Tweet.id, int(reply['id']), reply['name']))
 
         conn.commit()
     except sqlite3.IntegrityError: