Please in the pen view ticket page show the due date column in the wrong format. Hot to change as per last updates? See link below https://drive.google.com/file/d/1ovrVwWlHrvsTSa0PFIj2I0zrYSoOyTPO/view?usp=sharing
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Environment details? Version of osTicket?
Sorry here below my details.
Apache server Os ticket version 1.12
Here My issue
You appear to be running a custom theme mod. Please restore the product to the original distribution archive and see if that corrects your problem.