Websites offering "cracked" software often bundle the download with malware, keyloggers, or adware. Since Alfred requires "Accessibility" permissions to function, a compromised version would have deep access to everything you type on your Mac.
There is no legitimate "free" license code or "paper" for the Alfred 5 Powerpack. Alfred is proprietary software, and the Powerpack is a paid upgrade that supports the developers. alfred 5 powerpack license code free
However, there are some to consider:
Deeply search and take action on files directly from the search bar. alfred 5 powerpack license code free