Why do I get an error when I run the code?

[VonLYC]

Sorry to disturb you again.When I run drone_to_drone_protocol.hlpsl, it has the following error

And drone_to_gss_protocol.hlpsl have the similar result too.

[juvebogdancr7]

@VonLYC Did you receive an answer for this? The code in repository does not work