Wrong Pagination URL

Hi,

I have this big problem on mqtranslate, the problem is in next pages and previous pages.
The plugin is writing the permalinks wrong, like this example:

– > http://www.pulseframe.cf/category/movie-trailers/page/2

– > http://www.pulseframe.cf/?lang=pt/category/movie-trailers/page/2?lang=pt&lang=pt

The program should not be writing the first ‘lang’ parameter after the domain name and nor duplicate it at the end of the URL.
The right way should be just only one ‘?lang’ parameter at the end.

Can you help me with this? Or maybe fix this for the next update of the plugin?

https://wordpress.org/plugins/mqtranslate/