$this->assertContains($stringOnlyAvailableWhenApiWorks, $currentContent, "On Ysul, /home/wolfplex.org/logs/api.log could help. But more probably, you reinstalled the Etherpad container without restoring the API key. Move the former APIKEY.txt file to /opt/etherpad-lite or, if lost, update Wolfplex API credentials with the new API key.");