Hyperlink Problem says [The address of this site is not valid. Check the address and try again]

[Alkhader]

Hyperlink Problem says [The address of this site is not valid. Check the address and try again]
Please help. Some are ok while few did not work at all.
I got pop message says "The address of this site is not valid. Check the address and try again"

 

[Michael M]

Ok...seems to me the obvious thing to do would be to double check the addresses AND also look at the address and makes sure there are no extra spaces OR punctuation changes....espacially if you have copied and pasted the address lines !