Problem installing Neatline Time 2.1.0

I got the attached error message when installing the Neatline Time 2.1.0 plug in an Omeka 2.5 site

This is an issue that’s been reported to the plugin’s issue tracker for a while: it’s basically incompatible with Omeka 2.5.

@Daniel_KM has a fork of the plugin which I believe fixes this problem.