[!] Something went wrong, printing error: HTTP Error 500: Internal Server Error

[Spl01ter]

revorC2 - Legitimate Website Covert Channel
Written by: David Kennedy (@HackingDave)
https://www.trustedsec.com
[] Cloning website: https://github.com/
[] Site cloned successfully.
[] Starting Trevor C2 Server...
[] Next, enter the command you want the victim to execute.
[] Client uses random intervals, this may take a few.
[] Type help for usage. Example commands, list, interact.

trevorc2>
*** Received connection from 127.0.0.1 and hostname Johns-MacBook-Air.local with communication sid qmMckcopUtHCDdm for TrevorC2.

trevorc2>interact 1

*** interact with Johns-MacBook-Air.local qmMckcopUtHCDdm.
[] Dropping into trevorc2 shell...
[] Use exit or back to select other shells
Johns-MacBook-Air.local:trevorc2>ls
[*] Waiting for command to be executed, be patient, results will be displayed here...

[xme]

I had the same issue and took some time to investigate this.
Are you running Python 3.8+?
If it's the case, uninstall pycrypto and replace it with pycryptodome...
My $0.02!

[Spl01ter]

@xme I was running it on Python 3.9. I've now switched to Python 3.7 due to errors with other packages but the same error still occurs

[Spl01ter]

Resolved! Run agent in Python 2 and server in Python 3.7.