Multicheck outputs the text Array

Hello,

This plugin works fantastic except when adding a new multicheck checkbox once the checkboxes are checked and saved it only shows Array on the frontend.

I can’t find anything about it in the docs and ive been trying to solve it, but i have no idea how to fix it. Or maybe i’m doing something wrong.

All the other metaboxes works great.

https://ww.wp.xz.cn/plugins/projects-by-woothemes/