Gazzagreen This could be related to the issue @MrMessy reported here: https://community.wonderwatt.com/d/562-iog-charging-set-then-unset/4
But generally, you have IOG enabled and also have a default IOG slot set in Schedules for 23:30-5:30. If you use the IOG integration, I'd suggest turn the charge schedule(s) in Schedules section off.
If you're only using the default IOG slot and don't rely or have to match ad-hoc car plug-ins for mapped charges, you could disable IOG on WW.