Parsing Error Cloudflare in Hummingbird

I get this Error in Hummingbird where I could enter the Cloudflare Global API Key:

Parse error: syntax error, unexpected 'in' (T_STRING), expecting ';' in /.../.../.../.../domainname/wp-content/plugins/wp-hummingbird/admin/views/dashboard/cloudflare/meta-box.php on line 72

I have deactivated and deleted Hummingbird and made a new install, the Error is still there. I use Hummingbird with Cloudflare on other Domains on the same Server (no multisite)