insha please follow https://community.openpanel.co/d/2-how-to-ask-for-assistance
On which panel version? OS?
I can't reproduce this on demo that runs 0.2.3 https://demo.openpanel.co/openadmin/ nor on my instance running 0.2.4..
Check admin logs from OpenAdmin > Services > View Log Files then select "OpenAdmin Error Log"
or from terminal tail -50 /var/log/openadmin/error.log
AFTER you get that error on interface, and share output here.