Translated sites don't work

[KyleWheel]

Problem:

If a site is translated, the store URL gets an extra path, leaving the script thinking that the collection is the first tag, and adding a + to the tag rather than a /.

So, in a translated URL this looks like:
https://senkels.at/de/collections/2-5mm-round-waxed-shoelaces+colour_grey-tones
when it should be:
https://senkels.at/de/collections/2-5mm-round-waxed-shoelaces/colour_grey-tones