This PHP Manual build is broken

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The ja build of the PHP Manual is broken, so it does not validate or build. Please fix it! ;)

Attached is the full log

Love,
	The docs.php.net server

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===> Tue Oct 17 16:01:16 BST 2023 Starting ja
===> Tue Oct 17 16:01:16 BST 2023 Configuring ja
/local/systems/build-docs-snapshots: line 28: /usr/php81: No such file or directory
=============> Something happenend when snapshotting ja
Failed completely
=============> Please have a look!

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