Issues with szsbls3.szsb.uni-saarland.app access could stem from improper redirect settings between different versions of the site. Check the following links for alternative routes:

http://szsbls3.szsb.uni-saarland.app https://szsbls3.szsb.uni-saarland.app

Or return to the current status page of szsbls3.szsb.uni-saarland.app.