I purchase NameCheap SSL Certificate, that requires action from Homestead to "Typically, a Certificate Signing Request (or CSR) code is generated upon your request by your hosting company for the website you want to secure with an SSL certificate."
Homestead does not provide CSR's. I can see you have previously changed your nameservers to Cloudflare to get a secure site. Your site does work via https://, you just didn't finish the instructions to turn on the redirect settings. Please review the instructions for steps 12 and 13 to finish turning on the proper settings, so your site will automatically redirect to https.