:wasalamex
Try clearing your cookies and all your previous saved passwords. Then try checking if the same error comes up. But only do it if no-one else in your family has saved any passwords on the comp.
Tools - Clear Private Data [Ctrl + Shift + Delete] and tick the boxes Cookies and Saved Passwords, then click on Clear Private Data now insha'Allah.
Try it over again and see if it works insha'Allah.
:salamext: