Problem with Search function

Hi!
I’m having problems with the search function when Polylang is enabled.

I realy don’t know what the problem is. Bellow are 2 print screens that shows the efect.

Polylang disabled: http://imageshack.com/a/img922/192/2wQrEX.jpg

Polylang enabled: http://imageshack.com/a/img921/418/N6q2XK.jpg

I would really apreciate the help because I need my website to contain the multi language function.

Thanks in Advance!

Best regards,
Pedro

https://wordpress.org/plugins/polylang/