Updated my website and it is off of the first page... Website was also offline for 3 days

Hi,

I updated my website's theme and changed some pictures and a few things with my text. I was having some technical difficulties so my site was offline for about 3 days with a 404 error. Now everything is live and updated and when I searched some keywords that I was on the first page for, I noticed that I am not even on the first 5 pages anymore.

I also have some blog posts with targeted keywords that I will be posting for some keywords that do not have much competition but I don't know if I should wait because my site isn't really showing up for any keywords.

Any advice would be appreciated. I didn't over optimize anything by the way. Should I show back up on the first page?

Thanks