I just installed the plugin while working on a site and activating this plugin crashed the site. Got the error:
Catchable fatal error: Object of class Acf could not be converted to string in .../wp-includes/classes.php on line 277
De-activated all other plugins and still had this error. Please let me know if there is a solution - I like the versatility of this plug-in and have used it extensively on other sites.
Any help would be appreciated.