Contradiction with Genesis 1:9
This verse describes the gathering of waters into one place, whereas Proverbs 8:28 mentions the establishment of the clouds and fountains without a specific gathering of waters.
Genesis 1:9: And God said, Let the waters under the heaven be gathered together unto one place, and let the dry [land] appear: and it was so.
Contradiction with Isaiah 44:27
It speaks of drying rivers, contradicting the establishment of water sources implied in Proverbs 8:28.
Isaiah 44:27: That saith to the deep, Be dry, and I will dry up thy rivers: