Problemas al exportar video

Lots of needed information left out. So it would just be wild guessing.

What’s the media you’re using in Premiere? Format/codec, framesize/rate, created by what?

Sequence frameszie/rate?

What drives do you have ... do you have more than one drive, and if so, how are you using them?

What effects are you using ... Warp, frame-ramping/speed changes, color, anything?

What codec are you exporting to? Framesize/rate also.

And ... Premiere must have 4-5 times the final expected file size free in order to complete an export.

So I you don’t have 4-5 times the filesize free, you’ll have troubles. And that may well be your issue.