خطا در برقراری ارتباط با پایگاه‌داده در لوکال هاست با xampp

Welcome to phpMyAdmin

Error

MySQL said: Documentation
Cannot connect: invalid settings.
Packets out of order. Expected 0 received 1. Packet size=%Id
mysqli::real_connect(): Error while reading greeting packet. PID=6288
mysqli::real_connect(): (HY000/2006): MySQL server has gone away
Connection for controluser as defined in your configuration failed.
Packets out of order. Expected 0 received 1. Packet size=%Id
mysqli::real_connect(): Error while reading greeting packet. PID=6288
mysqli::real_connect(): (HY000/2006): MySQL server has gone away
phpMyAdmin tried to connect to the MySQL server, and the server rejected the connection. You should check the host, username and password in your configuration and make sure that they correspond to the information given by the administrator of the MySQL server.

نمی دانم چه شد امروز سیستم را روشن کردم این ارور را داد در ودرپرس هم این را می نویسد ((خطا در برقراری ارتباط با پایگاه‌داده))

لطفا راه نمایی کنید چه کنم ؟