Url with parameters doesnt works well

Hey,

I’m using the plugin to redirect non-us users to a different page.

The page contain parameters in the url.

This url works good:
https://www.decrypto.com/join-beta?pubid=12&clickid=xxx

and redirect to this url:
https://decrypto.com/join-beta-non-us/?pubid=12&clickid=xxx

but when I add / before the ? it doesn’t work
this url:
https://www.decrypto.com/join-beta?pubid=12&clickid=xxx

redirect to this url:
https://decrypto.com/join-beta/:/join-beta-non-us?pubid=12&clickid=xxx

Is possible to fix it?

Thanks

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