You can see the files and the lines where it’s happening and what the actual errors are, so the best thing to do is post that in the support forum for that plugin, and hope that the plugins author can fix these and put out a new update.
If you can’t, or don’t want to, wait then you’ll need to disable that plugin.
]]>I guess that get_post_type_object
failed.
The post type is registered ?
]]>