I've downloaded the XProtect Essential+ 2018R2 from the website, but after having installed it I got an error "Could not configure the server.See log file for more informations"

As this is not related to software development with the MIP SDK, which is the focus of this forum, please ask again in the support community, you should get better help from the partners using the support community.

https://supportcommunity.milestonesys.com