Do the revisions that were done on her own make the will invalid and will she have to have a new will made?

The revisions done on the pages of the Will would have no legal effect to change the Will. All amendments to a Will must be executed and witnessed in the same manner as any new Will. The changes on the face of pages of the original Will could open the Will to a challenge that the Will has been revoked by the creator of the Will. To avoid such a challenge the old Will should be replace by a new Will.

Those "revisions" are not legally binding. To be binding it has to be witnessed just like the will was. It is not a scratch pad where you can cross off something and simply write something in instead. She should start over with a new will, as it could argued that by crossing off things she revoked the entire will.