Hello,
Looking at your files, it seems like the headers in the sequence file do not match the names in the taxonomy, see:
(qiime2-2018.2) 12:05:31 Downloads$ head 90d0ab54-4c21-408c-979e-e3f7639f82e7/data/taxonomy.tsv
Feature ID Taxon
DQ068970 k__Fungi;p__Basidiomycota;c__Agaricomycetes;o__Thelephorales;f__Thelephoraceae;g__Thelephora;s__Thelephora_terrestris
AY750163 k__Fungi;p__Basidiomycota;c__Agaricomycetes;o__Thelephorales;f__Thelephoraceae;g__Thelephora;s__Thelephora_terrestris
AY456369 k__Fungi;p__Basidiomycota;c__Agaricomycetes;o__Thelephorales;f__Thelephoraceae;g__Thelephora;s__Thelephora_terrestris
AY880934 k__Fungi;p__Basidiomycota;c__Agaricomycetes;o__Thelephorales;f__Thelephoraceae;g__Thelephora;s__Thelephora_terrestris
AY880929 k__Fungi;p__Basidiomycota;c__Agaricomycetes;o__Thelephorales;f__Thelephoraceae;g__Tomentella;s__Tomentella_sublilacina
AF104990 k__Fungi;p__Basidiomycota;c__Agaricomycetes;o__Thelephorales;f__Thelephoraceae;g__Tomentella;s__Tomentella_testaceogilva
AF104989 k__Fungi;p__Basidiomycota;c__Agaricomycetes;o__Thelephorales;f__Thelephoraceae;g__Thelephora;s__Thelephora_alnii
AF104988 k__Fungi;p__Basidiomycota;c__Agaricomycetes;o__Thelephorales;f__Thelephoraceae;g__Tomentella;s__Tomentella_testaceogilva
AF104987 k__Fungi;p__Basidiomycota;c__Agaricomycetes;o__Thelephorales;f__Thelephoraceae;g__Thelephora;s__Thelephora_alnii
(qiime2-2018.2) 12:05:42 Downloads$ head 62ab68ae-be2f-4e23-a4ee-b1f9e4500124/data/dna-sequences.fasta
>8283bc2ce35098bc3065e103dcc1aa9b
ACTATAACACACTTTATATTCTGACCTCAAATCAGGTAGGACTACCCGCTGAACTTAA
>3e7d4d1bcbef3f925aea91eb8aa4fc9d
TTCGTTACACGCGTTTAACAGAATGTGTCTGGCCTCATATATGGAAGGTTACCCGCTGGATTTAA
>9ead059f61c895d1c30dc03bf0d82267
ATCCAACAGCTAGTTGGGACGTGACCTGACTACCCGTAGTAGGTCTAAATGGATTGCAATCAAAATGTGGTAAAAGACGGATGTTCTTTCCCATTGACGATTTAAACTCTGAATTATGATCTCAAATTATATAAGAATACCCGCTGAACTTAA
>c1089ff5e0958c3c127ef1c8e61feaf6
TTATGATGAATATGTTCAAACATATTTTTTGCAATATGTCTGGCCTCATATGTGGAAGGTTACCCGCTGGATTTAA
>7e31a264c73578223a66fb862337e946
GTTCAAAATATATAAAACAAAACTGTGTGGTAATTATTACACAATTGTTCTATCTAACTTTGATCTCAAATCAGATAAGAATACCCGCTGAACTTAA
BTW there is another thread with a similar issue:
Hope this helps.