Hey Minecraftian!!
I understand that you want to inform people about it but make sure to report it too so you prevent other people of loosing their items.
If you encounter any bug/glitch in the server feel free to submit a bug report at:
https://jartexnetwork.com/bug-reports/
If you encounter anny issue you can submit a msg at:
https://jartexnetwork.com/forums/community-assistance.90/
If you want you can also dm any staff member too so they inform developers more directly but it would be preferable to contact through a report.
Make sure you present some evidence ( screen shot or video ) if possible to get it so they can understand the bug better.
Have a nice day!