Background video not showing on exported site server

Hello, im having an issue with the background video complement, while preview or within the webflow internal project doman it shows properly

But once I export the code and pubsih it to my clients server it no longer dislpays, i’ve already tried changing the video url but it seems that it always try to read first the automaticaly frame “poster” (thats supposed to exist in order to replace video wirh a still image of the first frame of the video on mobiles but then it never proceeds with the playback and it does not work on any browser or device

http://zactain.com/rv/

Can somebody help me please