Predis ConnectionException: Connection timed out using on lumen api 5.6

I'm using laravel lumen api 5.6.3 for my application. I have also using Redis for my data storage. It's working fine last 2 years and past 10 days I'm getting issue like ERROR:

Predis\Connection\ConnectionException: Connection timed out [tcp://127.0.0.1:6379] in /home/minwin/public_html/winapi/vendor/predis/predis/src/Connection/AbstractConnection.php:155 Stack trace: #0 /home/minwin/public_html/winapi/vendor/predis/predis/src/Connection/StreamConnection.php(128): Predis\Connection\AbstractConnection->onConnectionError('Connection time...', 110) #1 /home/minwin/public_html/winapi/vendor/predis/predis/src/Connection/StreamConnection.php(178): Predis\Connection\StreamConnection->createStreamSocket(Object(Predis\Connection\Parameters), 'tcp://127.0.0.1...', 4) #2 /home/minwin/public_html/winapi/vendor/predis/predis/src/Connection/StreamConnection.php(100): Predis\Connection\StreamConnection->tcpStreamInitializer(Object(Predis\Connection\Parameters))

I have setting in .env like, BROADCAST_DRIVER=redis

CACHE_DRIVER=redis QUEUE_DRIVER=redis

REDIS_HOST=127.0.0.1 REDIS_PORT=6379

Please help any one to solve this issue.

via Chebli Mohamed