Activating Hummingbird plugin error

I want to activate Hummingbird plugin but got this error:
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in C:\domains\euro-logo.nl\wwwroot\wp-content\plugins\wp-hummingbird\core\modules\class-module-minify.php on line 526

Can you help me activate this plugin?

Marcin