Brand Not Found

Debug Error: Error: [GET] "https://image.itmall.sale/graphql?query=%0A++++query+getBrand($slug:+ID!)+%7B%0A++++++productBrand(id:+$slug,+idType:+SLUG)+%7B%0A++++++++id%0A++++++++name%0A++++++++slug%0A++++++++description%0A++++++++count%0A++++++++%23+ACF+Fields%0A++++++++taxonomyVisuals+%7B%0A++++++++++heroBanner+%7B%0A++++++++++++node+%7B%0A++++++++++++++sourceUrl%0A++++++++++++%7D%0A++++++++++%7D%0A++++++++++displayMode%0A++++++++++taxStory%0A++++++++%7D%0A++++++++%23+New+Backend+Aggregation+Field%0A++++++++relatedCategories+%7B%0A+++++++++++id%0A+++++++++++name%0A+++++++++++slug%0A+++++++++++count%0A+++++++++++products(first:+1)+%7B%0A+++++++++++++nodes+%7B%0A+++++++++++++++image+%7B%0A+++++++++++++++++sourceUrl%0A+++++++++++++++%7D%0A+++++++++++++%7D%0A+++++++++++%7D%0A+++++++++++parent+%7B%0A+++++++++++++node+%7B%0A+++++++++++++++id%0A+++++++++++++%7D%0A+++++++++++%7D%0A++++++++%7D%0A++++++++products(first:+8,+where:+%7B+orderby:+%7B+field:+TOTAL_SALES,+order:+DESC+%7D+%7D)+%7B%0A++++++++++nodes+%7B%0A++++++++++++id%0A++++++++++++name%0A++++++++++++slug%0A++++++++++++sku%0A++++++++++++shortDescription(format:+RAW)%0A++++++++++++image+%7B%0A++++++++++++++sourceUrl%0A++++++++++++%7D%0A++++++++++++...+on+SimpleProduct+%7B%0A++++++++++++++price%0A++++++++++++++regularPrice%0A++++++++++++++stockStatus%0A++++++++++++%7D%0A++++++++++++...+on+VariableProduct+%7B%0A++++++++++++++price%0A++++++++++++++regularPrice%0A++++++++++++++stockStatus%0A++++++++++++%7D%0A++++++++++%7D%0A++++++++%7D%0A++++++%7D%0A++++%7D%0A++&variables=%7B%22slug%22:%22huawei%22%7D": 500 Internal Server Error