Model is throwing an error for one sequence

[nyapathi]

Here is the specific sequence for which the error is happening:

WZB41898.1 mRNA capping enzyme large subunit, partial [Monkeypox virus] XVSSSTIATYIDALAKNASELEQRSTXXXXXXXXXXXFIXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXLSKVHGLDVKNVQLVDAIDNIVWEKKSLVTENRLHKECLLRLS TEERHIFLDYKKYGSSIRLELVNLIXXXXXXXXXXXXXXXXXXXXAQSKSSLXXXINHPK SRPNTSLEIEFTPRDNETVPYDELIKELTTLSRHIFMASPXXVILSPPINAPIKTFMLPK QDIVGLDLENLYAVTKTDGIPITIRVTSKGLYCYFTHLGYIIRYPVKRTIDSEVVVFGEA VKDKNWTVYLIKLIEPVNAISDRLEESKYVESKLVDICDRIVFKSKKYEGPFTTTSEVVD MLSTYLPKQPEGVILFYSKGPKSNIDFKIKKENTIDQTANVVXXXXXXXXXXXXXXSIFI EYKKFTNDKGFPKEYGSGKIXXXXXXXXXXXXXXXXXXXXHNEVGIKXXVVPIKFIAXXX XXXXXLXXRIDKTMKYINSXXYYGNQHNIIVEHLRDQSIKIGDVFNEDKLSDIGHQYAXX XXXXXXXPEVSYFTNKXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXFYGEIALLVATDPDADAIARXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXHYATVMNNLSELTASGGKVLITTMDGDKLSKLTDK KTFIIHKNLPSSENYMSVEKIADDRIVVYNPSTMSTPMTEYIIKKNDIVRVFNEYGFVLV DNVDFATIIXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXVYVFSK R