Contradiction with Genesis 9:11
In Genesis 7:7, Noah goes into the ark due to the threat of floodwaters, while Genesis 9:11 promises that no such flood will ever happen again to destroy the earth, implying that they wouldn't need to seek refuge in an ark for such a reason again.
Genesis 9:11: And I will establish my covenant with you; neither shall all flesh be cut off any more by the waters of a flood; neither shall there any more be a flood to destroy the earth.
Contradiction with Isaiah 54:9
This verse speaks of God's promise not to flood the earth again as He did during Noah's time, contrasting with the immediate danger in Genesis 7:7 that necessitated entering the ark.
Isaiah 54:9: For this [is as] the waters of Noah unto me: for [as] I have sworn that the waters of Noah should no more go over the earth; so have I sworn that I would not be wroth with thee, nor rebuke thee.