Redirection issues between various versions of nhv-theophrastus.de may be causing access problems. See the links provided below to access the site through alternative routes:

http://nhv-theophrastus.de http://www.nhv-theophrastus.de https://nhv-theophrastus.de https://www.nhv-theophrastus.de

Or return to the current status page of nhv-theophrastus.de.