How to fix error: Could not load file or assembly '" website"' or one of its dependencies

Hello I'm having trouble running my ASP.Net site. I am new to using it to build websites, ijust wanted to know how can i solve this error: Could not load file or assembly '"My Website"' or one of its dependencies. The given assembly name or codebase was invalid. (Exception from HRESULT: 0x80131047).

what is it that i did wrong in order to get it., I looked at other solutions like going to tools>options>web projects enter image description here

But the checkbox to use the 64 bit version of IIS for websites and projects was disabled