When I tried to run the Setup.exe file from LoTRO Plugin Compendium in the Lotro bottle, I got the following message:

Setup has detected that the file C/usersicrossover \TempiN5D6e93, tmpiDotNetFX472\NDP472-
KB4054531-Web.exel has changed since it was initially published. Click ok to retry the download, or Cancel to exit setup.[/QUOTE]

Does anyone know whether this is a "normal" message and whether I should click OK to retry or did I do something wrong?
Thank you for any and all help.