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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_jvor5h75cble1fim0fhrbp84i4, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
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<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
static void copyConceptsFile(S dbID1, S dbID2) {
  for (S ending : ll("", ".gz")) {
    File f1 = getProgramFile(dbID1, "concepts.structure" + ending);
    File f2 = getProgramFile(dbID2, "concepts.structure" + ending);
    if (!f2.exists() && f1.exists())
      copyFile(f1, f2);
  }
}