What should I do if the program I participated in was infringed?

[Gary Chan]

What should I do if the program I participated in was infringed?
https://5t5.top/
The above website has modified the copyright information of the open source 
program without authorization, and the program is open sourced under the Apache 
License 2.0 license.
GitHub address：https://github.com/soxft/UrlShorting/blob/master/LICENSE