Warning: session_start(): open(/var/lib/php/sessions/sess_pgnn8bkphvdhd1jutl6hd3p6di, O_RDWR) failed: No space left on device (28) in /var/www/tb-usercake/models/config.php on line 51

Warning: session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in /var/www/tb-usercake/models/config.php on line 51
static Set ciSetIntersection(Collection a, Collection b) { Set set = ciSet(); Set bSet = asCISet(b); for (S x : a) if (bSet.contains(x)) set.add(x); ret set; }