I encountered the same problem
The best solution
Download arpl-i18n-23.8.7
build the loader DS3622XS+
Install
A. x86_64 (9.1.2-10854)
https://global.synologydownload.com/download/Package/spk/SurveillanceStation/9.1.2-10854/SurveillanceStation-x86_64-9.1.2-10854.spk
bash <(curl -L https://raw.githubusercontent.com/Kaitiz/Surveillance-Station/main/lib/SurveillanceStation-x86_64/install_license)
https://github.com/Kaitiz/Surveillance-Station-9