@say my name
Hello, you are entering the command incorrectly, it should be as follows:
/tperm add nameOrId GROUP wipe - Grants until the next wipe;
/tperm add nameOrId GROUP 60 false/true(optional) - Grants for 60 seconds. If false is specified after the seconds(default), the time will be added if the player already has an active temporary permission/group.
If true, existing active permission/group will be reset and the new time will be applied as specified;
/tperm add nameOrId GROUP "2025-02-19 17:57" - Specifies the exact date in UTC format until which the temporary permission/group will remain active.
o.usergroup add nameOrId GROUP wipe
o.usergroup add nameOrId GROUP 60 false/true(optional)
o.usergroup add nameOrId GROUP "2025-02-19 17:57"