Internal Server Error

Creation of dynamic property Opauth::$Strategy is deprecated

[sugar/Opauth/lib/opauth/Opauth.php:112] 
[sugar/Opauth/lib/opauth/Opauth.php:112] Base->{closure}()
[sugar/Opauth/lib/opauth/Opauth.php:88] Opauth->run()
[sugar/Opauth/lib/opauth/OpauthBridge.php:44] Opauth->__construct()
[lib/base.php:1997] OpauthBridge->auth()
[lib/base.php:1795] Base->call()
[index.php:2014] Base->run()