程序运行异常 (500 Error)

错误信息: Connection refused
错误文件: /www/wwwroot/ce1.fmu9.cc/seo998/Services/RedisService.php
错误行号: 27

堆栈追踪:
#0 /www/wwwroot/ce1.fmu9.cc/seo998/Services/RedisService.php(27): Redis->connect()
#1 /www/wwwroot/ce1.fmu9.cc/seo998/Services/RedisService.php(11): RedisService->initConnection()
#2 /www/wwwroot/ce1.fmu9.cc/seo998/Context.php(28): RedisService->__construct()
#3 /www/wwwroot/ce1.fmu9.cc/seo998/Context.php(19): Context->initializeServices()
#4 /www/wwwroot/ce1.fmu9.cc/public/index.php(47): Context->__construct()
#5 {main}