error updating record: Invalid key format

Hello! When I try to input a WPA-PSK key in the IEEE 802.11 decryption place, I get the message in the title. I have tried with ssid:password, and password only.

Also, I have input a WEP key earlier (that worked), and even though I delete it and see it dissapear, it reappears if I close the window with OK, and then reopen it. What should I?

Thank you, i really appreciate it!