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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_mj66ucqsstjd40vg9is5sklcbc, 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 File mapMethodLike defaultExtension(S ext, File file) {
  if (empty(ext)) ret file;
  if (file == null || fileHasAnyExtensionAtAll(file)) ret file;
  ret appendToFileName(addDotPrefix(ext), file);
}

sS defaultExtension(S ext, S fileName) {
  if (empty(ext)) ret fileName;
  if (fileName == null || contains(fileName, '.')) ret fileName;
  ret rjoin(addDotPrefix(ext), fileName);
}