The wikiclass enwiki_tuning_reports rules are broken, by the parameter "--label-type". Tuning classifier config is out-of-date.
Looks like there is one more minor problem with Makefile. enwiki_tuning_reports rule runs tuning_reports/enwiki.wp10.md and tuning_reports/enwiki.nettrom_wp10.md. But there is no rule for tuning_reports/enwiki.wp10.md (looks like it was removed in the past). However, related file exists.