Failed to execute git checkout '270e7f7f2b53e4b9ce068d7537e3687531e39ad0' -- && git reset --hard '270e7f7f2b53e4b9ce068d7537e3687531e39ad0' -- fatal: reference is not a tree: 270e7f7f2b53e4b9ce068d7537e3687531e39ad0 It looks like the commit hash is not available in the repository, maybe the commit was removed from the branch? Run "composer update wporg/wporg-parent-2021" to resolve this.