W3SVC service is stopped frequently on Win 2016

Dear,

I've encountered one problem that Windows 2016 W3SVC service always stops frequently even though I set Startup Type as Automatic mode.

I configured IIS service and the IIS ran well. However my portal is not accessed after 1 day. I found that W3SVC service is disabled. I manually start it then IIS works well. But the problem happens on next day.

I check the event viewer and below Warning and Error messages are in the list.

Could somebody help me out? Thanks in advance.

PS: Versions info of Windows and IIS are below.