Installation via Extension Manager breaks Dokuwiki

[quarterwave]

Installing the extension via the Extension Manager on Dokuwiki "Hogfather" results in the following error message:

Parse error: syntax error, unexpected end of file in [...]/dokuwiki/lib/plugins/bpmnio/action/editor.php on line 107

Afterwards, not a single page of my wiki can be accessed and only the error message appears on every page. I had to manually delete the bpmnio folder in the plugins directory to be able to access my wiki again.