Other than the grammatical errors others have pointed out it has some responsive issues (viewing it on my Android phone).
Especially around the "How to Solve" section where the text overlaps and goes outside of the bounding box etc. It is mostly still legible, but with so much traffic being mobile I'd work to fix those issues as they are low hanging fruit fixes.
Also, I wouldn't have links that just always go to the contact page. Just remove the links until you have content or create the content. Specifically your about us section in the footer. I personally wouldn't even fill out your contact form to ask for details without knowing something about who you are, what you have done that makes your opinion something I should listen to.
Especially around the "How to Solve" section where the text overlaps and goes outside of the bounding box etc. It is mostly still legible, but with so much traffic being mobile I'd work to fix those issues as they are low hanging fruit fixes.
Also, I wouldn't have links that just always go to the contact page. Just remove the links until you have content or create the content. Specifically your about us section in the footer. I personally wouldn't even fill out your contact form to ask for details without knowing something about who you are, what you have done that makes your opinion something I should listen to.