trying to fix 404 not found crawl errors

I am getting a number of crawl errors 404 not found. I tracked them to blurbs where the url's were entered incorrectly which I cannot fix. I got hit with the recent panda update and trying to do all I can to get my ranking back. Someone said this will help but I don't know how to fix the 404 errors. Here's one of the errors.

htt​p:/​/ww​w.3​dem​itt​er.​com​/mi​tsu​bis​hi-​3d-​sta​rte​r-p​ack​/mi​tsu​bis​hi-​3d-​sta​rte​r-p​ack​-o </p​><p​>n-​sal​e”>​Mit​sub​ish​i 3D Sta​rte​r Pac​k tha​t he got for his 3D TV. I was kin​d of gla​d he was​n’t hom​e fro​m wor​k yet bec​aus​e I was sit​tin​g the​re min​din​g my own bus​ine​ss whi​le my gra​nds​on was pla​yin​g and I tri​ed to cat​ch a bal​l tha​t wen​t out of bou​nds​! My gra​nds​on was lik​e, Gra​ndp​a, wha​t are you doi​ng?​%20​Do%​20y​ou%​20w​ant​%20​to%​20p​lay​%20​wit​h%2​0me​?%2​0It​%20​was​%20​so%​20%​5B.​..%​5D%​20%​3Ca​%20​hre​f=

 

Im not following your question too well, but a 404 is when a page doesn't exist - so you need to either fix it or remove the reference to it.

 

The site in Question htt​p:/​/ww​w.3​dem​itt​er.​com​/ is not indexed. It redirects me to some strange URL when i try to open it. You must make your Question more clear.

 

I guess, there is something wrong URL...

In order to avoid 404 error, redirect these pages to some relevant pages...