Registration Cases
Central hub for articles that help you resolve CloudLinux OS license registration and activation issues. Subscription purchases, upgrades, cancellations, and refunds are covered in the Billing & Licensing category.
- Server license check failed: _cffi_backend.cpython-36m-x86_64-linux-gnu.so: invalid ELF header
- Error: License not found for key/IP!
- rhn-plugin: Network error: ECONNRESET
- The "License not found for key/IP" error during the CloudLinux license activation.
- Registration Error: "Too many systems registered using this registration token"