Site keeps closing on my IPAD only

Hello, I really enjoy your site and the valuable notifications and also following my portfolio (Thank you). It really gives me the confidence I need to do my financial planning in retirement. Today I just experienced a problem on my IPAD only, where the site is very unstable at first and then closes down completely. My account still works fine on my iPhone though. My IPAD is about 6 years old but still working like new with ALL of my apps working just fine. Is there something that you did today to not allow IPADS to read your site? I'll really miss it if that is the case. Thank you. Joe