Doesn’t work

Hi,
I installed le plugin in local with wamp. Installation is ok. But if I try to activate the plugin, I’ve a message:

Fatal error: Using $this when not in object context in C:\wamp\www\bvb\wp-content\plugins\wp-club-manager\includes\class-wpcm-install.php on line 77

I don’t know what it means, but I can’t activate the plugin

Regards