Cannot vest my SNX on L2

sUSDsUSD
$0.99899
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self.synthetix_io1m ago
Tried it several times and it always says "Unknown block number". Has anyone have similar issues before? ​ https://preview.redd.it/c06q81noc9t81.png?width=1200&format=png&auto=webp&s=e090d1880ee7f70b909e736190a4e8179bd4388a