10/19/2018 08:51AM BST
Mae’r mater hwn bellach wedi ei ddatrys. Fodd bynnag, os ydych yn dal i brofi problemau sy’n gysylltiedig â hyn, cysylltwch â Desg Wasanaeth TG os gwelwch yn dda.
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This issue is now resolved. However, if you are still experiencing any problems related to this, please get in contact with the IT Service Desk.