Xt_tls module not working

The xt_tls module (https://github.com/Lochnair/xt_tls) can make the firewall implement the sni filtering function, but it cannot work properly after compiling and installing, the situation and link (https://github.com/Lochnair/xt_tls/issues/14#issuecomment-1135577163), the same source code can work normally after ubuntu is compiled and installed, what is the problem?

@reinerotto commented there - perhaps he could give you some clarity.