How to fix 404 errors on product filters?

Hi all.

We have a strange issue and it’s quite an emergency.

We configurated our Markets and created subfolders to provide a personnalized shopping experience to our customers.

Someone know how to fix this ?

Our theme support is very useless..

I can paste the code of one of our collections here if needed :

{
"sections": {
"1655886244c55063f9": {
"type": "divider",
"settings": {
"divider_spacing": 0,
"divider_border": false,
"css_class": "",
"custom_css": ""
}
},
"165588589696d4c0d9": {
"type": "image-with-text-overlay",
"settings": {
"wide_display": true,
"image": "shopify:\/\/shop_images\/test-min.jpg",
"pretext": "",
"title": "",
"subtitle": "

<strong>The first fashion cigar accessory that many have been waiting for.<\/strong><\/p>",
"button1": "",
"button1_link": "",
"button1_style": "global-button--banner",
"button2": "",
"button2_link": "",
"button2_style": "global-button--banner",
"text_position": "center",
"text_align": "center",
"caption_content_background": "original",
"mobile_image_crop": "none",
"mobile_text_below_image": true,
"mobile_text_color": "",
"css_class": "",
"custom_css": ""
}
},
"main": {
"type": "collection-template",
"blocks": {
"94456c61-9fb0-42ab-ba6e-e61ec40a2140": {
"type": "filter",
"settings": {
"filter_name": "Material",
"filter_tags": "18K gold plated - 5 microns, 316L stainless steel, Brass",
"enable_filter_swatches": false
}
},
"c222296d-45f2-4081-9212-6e3bcdbd3073": {
"type": "filter",
"settings": {
"filter_name": "Color",
"filter_tags": "Black, Blue, Chrome, Green, Red, Translucent red, Turquoise, White, Brown",
"enable_filter_swatches": true
}
},
"9837ebfe-5942-4a0b-ab8a-fa85b4d7b92d": {
"type": "filter",
"settings": {
"filter_name": "Type of beads",
"filter_tags": "Carnelian, Hematite, Lava, Magnesite, Malachite, Onyx, Red Jasper, Serpentine, Sodalite, Tiger Eye, Lapis Lazuli, Turquoise",
"enable_filter_swatches": false
}
},
"4dbda402-7dc8-469b-99c9-6a42ebd1ad9e": {
"type": "filter",
"settings": {
"filter_name": "Number of bracelets",
"filter_tags": "1, 3",
"enable_filter_swatches": false
}
},
"47136544-26ed-444a-87a6-4d7501a11cd8": {
"type": "filter",
"settings": {
"filter_name": "Size of the beads",
"filter_tags": "8mm, 10mm",
"enable_filter_swatches": false
}
}
},
"block_order": [
"94456c61-9fb0-42ab-ba6e-e61ec40a2140",
"c222296d-45f2-4081-9212-6e3bcdbd3073",
"9837ebfe-5942-4a0b-ab8a-fa85b4d7b92d",
"4dbda402-7dc8-469b-99c9-6a42ebd1ad9e",
"47136544-26ed-444a-87a6-4d7501a11cd8"
],
"settings": {
"featured_collection_image": false,
"wide_display": true,
"mobile_image_crop": "none",
"caption_content_background": "original",
"display_collection_title": true,
"collection_breadcrumb": true,
"collection_tags": false,
"collection_sort": true,
"products_per_row": 3,
"pagination_limit": 48,
"toggle": false
}
},
"newsletter": {
"type": "newsletter",
"settings": {
"wide_display": true,
"display_first_name": false,
"display_last_name": false,
"newsletter_title": "NEWSLETTER",
"newsletter_text": "</strong>

<strong>Quality newsletter from father to son since 1789.<\/p>",
"newsletter_section_text_align": "center",
"css_class": "",
"custom_css": ""
}
}
},
"order": [
"1655886244c55063f9",
"165588589696d4c0d9",
"main",
"newsletter"
]
}

Thank you,

Hadrien