Hello, sorry for the inconvenience. Something does not work.
14:23:16

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14:24:27

sendtoaddress DESK6cNAJSKhf8tQvf31hNetnJCSfS3axe 0,9998 FGgY9vCt5eLvWAHGxyusjgPokPm6koQEFN
14:24:27

Invalid amount (code -3)
Maybe try to use a dot instead of comma ,--->.
or you have to deduct a small amount for fees