Please check, if a restart of the server machine makes sense. If yes, use a script that guarantees a clean startup in the right order. The following extract of a script can be used in a .bat file, that might be executed daily in your windows task scheduler.

Windows Task Scheduler - configuration of daily server restart
@ECHO OFF
REM *****************************************************************
REM * GIS Server Restart *
REM * *
REM *****************************************************************
@ECHO ON
echo "Start of Restart of ArcGIS Server/IIS/Tomcat/WebOffice: "
date /t
time /t
REM STOPPING-Windows-Services
REM =========================
net stop "Apache Tomcat 9.0 Tomcat9" /y
net stop "SynerGIS WebOffice Extensions" /y
@ECHO OFF
ping -t localhost -n 15
net stop "ArcGIS Server" /y
ping -t localhost -n 30
@ECHO ON
net stop "World Wide Web Publishing Service" /y
net stop "IIS Admin Service" /y
@ECHO OFF
REM wait for 30 seconds
ping -t localhost -n 30
@ECHO ON
REM Starting-Windows-Services
REM =========================
net start "IIS Admin Service"
net start "World Wide Web Publishing Service"
net start "ArcGIS Server"
@ECHO OFF
REM Wait 60 seconds - using ping - portable to other Windows Version
ping -t localhost -n 60
@ECHO ON
REM Restart IIS to Update REST-Interface
REM ====================================
net stop "World Wide Web Publishing Service" /y
net stop "IIS Admin Service" /y
net start "IIS Admin Service"
net start "World Wide Web Publishing Service"
REM Start SynerGIS WebOffice Extensions
net start "SynerGIS WebOffice Extensions"
REM Wait X seconds - using ping - portable to other Windows Version
ping -t localhost -n 15
REM Finally TomCat start
net start "Apache Tomcat 9.0 Tomcat9"
echo "End:"
date /t
time /t
@ECHO OFF
Note: The above listed script can be downloaded via the link GIS Server Restart. Please note that it is possible that name of services or time management of breaks within the script has to be adapted according to the customer server.
Note: If you have configured a Full-Text Search in your WebOffice 10.7 SP1 application, you can use a command in the .bat script to recreate all subindices. Please see chapter Batch Administration Request for more details.