liarandathief on "[Plugin: Simple History] Database error when activating and can't delete."

When I activate, I get the error below. It appears that the UI is installed, but doesn't function. Every time there's a loggable event I get the same message, including deactivating. Can't delete the plugin "Plugin could not be deleted due to an error: Could not fully remove the plugin(s) simple-history/index.php."

thoughts?

WordPress database error Incorrect integer value: '' for column 'object_id' at row 1 for query
		INSERT INTO wp_simple_history
		SET
			date = '2014-03-13 00:36:08',
			action = 'activated',
			object_type = 'plugin',
			object_subtype = '',
			user_id = '2',
			object_id = '',
			object_name = 'Simple History',
			action_description = ''
		 made by activate_plugin, do_action('activate_simple-history/index.php')

https://wordpress.org/plugins/simple-history/