PHP Deprecated

As of PHP version > 5.4 reference by value is deprecated.

Assigning the return value of new by reference is deprecated in /wp-content/plugins/oauth-provider/includes/class-oauth-provider.php on line 361

Just remote the & before the new Class.

https://wordpress.org/plugins/oauth-provider/