Your ingame name: AgusOff The offender's ingame name: besim215 A description of what rule they broke/how they broke it: Hacking Evidence/screenshots.
The command is /! And it is in the game to get you out of a block if you accidentally enderpearl into one. When he stands next to the glass pane the game sees that area as a full block and thinks that they are stuck. Doing the command /! Teleports the player to the nearest spot above them, in this case the roof of the house. This is not necessarily against the rules. Many players use this.