Plugin could not be activated because it triggered a fatal error.

Can you please share the following details so that I can reproduce the issue and fix it.

1. WordPress version that you are using ?
2. PHP version ?

I’m guessing you’re using PHP 5.2 or earlier, which doesn’t support closures. If you can share your PHP version it would be helpful.

https://stackoverflow.com/questions/4949573/parse-error-syntax-error-unexpected-t-function-line-10-help