Prestashop Switching Http to Https applying to Google Webmaster Tools

[nycbicycleshop]

I just bought the security certificate for my prestashop website https://www.nycbicycleshop.com . I activated the enable ssl and enable ssl for all pages from the preferences/general, I rewrote the htaccess file to force all to https and I created new sitemap.

I created the new property on the Google webmaster tools with https://mydomain and submitted the new sitemap, but giving 576 error ''sitemap contains urls which are blocked by robots.txt'', I checked my sitemap and all url addresses changed with https, am I missing some steps? Please check the robots.txt and sitemap below.

Thanks for the help.

Robots.txt https://www.nycbicycleshop.com/robots.txt

Sitemap https://www.nycbicycleshop.com/shop_1_lang_en_sitemap.xml