我在centos7上使用cpanel，php56，litespeed

我有时会出现一些错误，例如（/ usr / local / apache / logs / error_log）：

2020-04-12 03:37:44.093846 [NOTICE] [1529] [1529] Cmd from child: [extappkill:19814:-3:0]
2020-04-12 03:37:44.093723 [NOTICE] [1534] sendKillCmdToWatchdog: 'extappkill:19814:-3:0'.
2020-04-12 03:37:51.416230 [NOTICE] [1529] [1529] Cmd from child: [extappkill:19841:-3:0]
2020-04-12 03:37:51.796366 [NOTICE] [1529] [1529] Cmd from child: [extappkill:19949:-3:0]
2020-04-12 03:37:51.416128 [NOTICE] [1535] sendKillCmdToWatchdog: 'extappkill:19841:-3:0'.
2020-04-12 03:37:51.796295 [NOTICE] [1535] sendKillCmdToWatchdog: 'extappkill:19949:-3:0'.

stderr.log也为空，并且LSAPI_ALLOW_CORE_DUMP = 1

我该如何解决？