I want to use compojoomcomment4.1.8 build149 with DocMan 1.5.10. I have followed the instruction, but I get these errors, when I load a DocMan detail page:

Warning: require_once() [function.require-once]: Unable to access /home/h/i/ftp_hitlogendk/administrator/components/com_comment/plugin/com_docman/josc_com_d ocman_doc.php in /home/h/i/ftp_hitlogendk/components/com_docman/themes/default/templates/documents/document.tpl.php on line 189



Warning: require_once(/home/h/i/ftp_hitlogendk/administrator/components/com_comment/plugin/com_docman/josc_com_d ocman_doc.php) [function.require-once]: failed to open stream: No such file or directory in /home/h/i/ftp_hitlogendk/components/com_docman/themes/default/templates/documents/document.tpl.php on line 189



Fatal error: require_once() [function.require]: Failed opening required '/home/h/i/ftp_hitlogendk/administrator/components/com_comment/plugin/com_docman/josc_com_d ocman_doc.php' (include_path='.:/usr/local/lib/php') in /home/h/i/ftp_hitlogendk/components/com_docman/themes/default/templates/documents/document.tpl.php on line 189

I don't understand the error messages, but it sounds like some file is missing...?! Can somebody tell me, what I do wrong?