Fatal error: Uncaught Error: Class "GuzzleHttp\HandlerStack" not found in /home/.sites/740/site1364/web/cloud/-/3rdparty/php-opencloud/openstack/src/Common/Transport/HandlerStack.php:10
Stack trace:
#0 {main}
  thrown in /home/.sites/740/site1364/web/cloud/-/3rdparty/php-opencloud/openstack/src/Common/Transport/HandlerStack.php on line 10