Critical error

The sheet music plug appears to have destroyed my website after the latest update. I had to contact WP to get them to deactivate teh plug in. They sent me this error code:

Warning: require(/srv/htdocs/wp-content/plugins/sheet-music-library//admin/post-meta.php): failed to open stream: No such file or directory in /srv/htdocs/wp-content/plugins/sheet-music-library/sheet-music-library.php on line 42 Fatal error: require(): Failed opening required ‘/srv/htdocs/wp-content/plugins/sheet-music-library//admin/post-meta.php’ (include_path=’.:’) in /srv/htdocs/wp-content/plugins/sheet-music-library/sheet-music-library.php on line 42

Please can you let me know when it is safe to activate the plug in again?

Is it dead? Should I find another solution or will the issue be resolved?

Thanks,

Charlie