If your original supplier is out of business, post your receiving card photo in the comments (showing the main chip, e.g., "MBI5124" or "ICN2038"). I will help you locate the correct 21.09-compatible driver package.
Unlike common software (NovaStar, Linsn), HCLED is distributed directly through manufacturers or resellers. Here are your three best options: hcled 21.09 led software download