Im registered to tc can't demolish walls it gets no damage

TruePVE handles damage
demolish and rotate are not damage

you cannot demolish nor rotate after the time expires unless you use a plugin such as these
https://umod.org/plugins/building-actions
https://umod.org/plugins/remover-tool

Hi!

So we have no choice to use one of those plugins right? One of my players has made a wooden floor and he cannot demolish it by himself!

yes, this plugin controls damage