(gyoithon.py:1000) assertion 'GDK_IS_DISPLAY (display)' failed

[M0dred]

5.2.0-kali3-amd64 #1 SMP Debian 5.2.17-1kali2 (2019-10-17) x86_64 GNU/Linux

Python 3.7.5

python3 gyoithon.py
Unable to init server: Could not connect: Connection refused
Unable to init server: Could not connect: Connection refused

(gyoithon.py:1000): Gdk-CRITICAL **: 04:32:42.931: gdk_cursor_new_for_display: assertion 'GDK_IS_DISPLAY (display)' failed

[*] Get 2011 CVE list from https://nvd.nist.gov/feeds/json/cve/1.0/nvdcve-1.0-2011.json.zip
Killed

How to set server_host & LHOST if GyoiThon running on public address？