Dreamweaver cs5 CFID /CFToken

I have Dreamweaver cs5.  It has worked fine for many years.  But this year (2020) I can make changes, upload my changes, but the changes are not shown in any web browser.  My web host says the problem in in the configuring of CFID abd CFToken.  I can not see what is wrong. Code from my Application.cfm 

<cfapplication name="jamestownclassic"
clientmanagement="No"
SESSIONMANAGEMENT="Yes">
<!--- Code for logging out users who close the browser. --->
<cfif IsDefined("Cookie.CFID") AND IsDefined("Cookie.CFTOKEN")>
  <cfset localCFID = Cookie.CFID>
  <cfset localCFTOKEN = Cookie.CFTOKEN>
  <cfcookie name="CFID" value="#localCFID#">
  <cfcookie name="CFTOKEN" value="#localCFTOKEN#">
</cfif>Can anyone tellme what is wrong?