你好，请问一下，redis.exceptions.ResponseError: invalid DB index怎么解决？

docker起来后发现报错，上网找了好多的方法都不行
Exception in thread thread_10:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/threading.py", line 916, in _bootstrap_inner
self.run()
File "/app/helper/check.py", line 81, in run
if self.proxy_handler.exists(proxy):
File "/app/handler/proxyHandler.py", line 77, in exists
return self.db.exists(proxy.proxy)
File "/app/db/dbClient.py", line 107, in exists
return self.client.exists(key, **kwargs)
File "/app/db/redisClient.py", line 91, in exists
return self.__conn.hexists(self.name, proxy_str)
File "/usr/local/lib/python3.6/site-packages/redis/client.py", line 3006, in hexists
return self.execute_command('HEXISTS', name, key)
File "/usr/local/lib/python3.6/site-packages/redis/client.py", line 898, in execute_command
conn = self.connection or pool.get_connection(command_name, **options)
File "/usr/local/lib/python3.6/site-packages/redis/connection.py", line 1379, in get_connection
connection.connect()
File "/usr/local/lib/python3.6/site-packages/redis/connection.py", line 567, in connect
self.on_connect()
File "/usr/local/lib/python3.6/site-packages/redis/connection.py", line 664, in on_connect
if nativestr(self.read_response()) != 'OK':
File "/usr/local/lib/python3.6/site-packages/redis/connection.py", line 756, in read_response
raise response
redis.exceptions.ResponseError: invalid DB index
另外想问一下，这个问题会影响网页的请求吗？
直接访问：5010是可以正常访问的
http://127.0.0.1:5010/
delete?proxy=127.0.0.1:8080 "delete an unable proxy"
get "get an useful proxy"
get_all "get all proxy from proxy pool"
get_status "proxy number"
pop "get and delete an useful proxy"
但访问/get的话报错

Internal Server Error

The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.