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GWALL

Digwyddodd gwall wrth brosesu eich cais.

Mae angen cwcis i ddefnyddio'r gwasanaeth. Gwnewch yn siŵr eich bod wedi eu galluogi ac yna ewch yn ôl i'r adnodd a cheisiwch fewngofnodi eto.

Gall defnyddio'r botwm 'yn ôl' ar eich porwr achosi gwallau penodol hefyd. Gellir eu datrys trwy fynd yn ôl at eich adnodd dewisol a cheisio mewngofnodi eto.

Os ydych chi'n dal i gael problemau, cysylltwch â thîm ymholiadau'r Llyfrgell.

Ymddiheurwn am unrhyw anghyfleustra.

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