Poe out status overload

Hello
I am having a problem with poe out with omnitik poe 5. It always says in status overload. I removed the device and set poe to force on on this port it keeps saying overload with no device connected on the port.
I changed the device to another port on the omnitik it worked.
Did I lose the poe out on this port or I miss configuring something? Why it is giving overload even if no device connected. The other ports will show the voltage out when set to forced on even with no device connected.