I try to open on any tablet (that we need to do the survey!), I get a blank screen

[Kal_Lam]

Welcome to the community, @edukaitliteracy! It could be a browser issue. This post discussed previously should help you solve your issue:

Loading Error - Samsung Tablet issue

Welcome to the community, @fernandapalhano! The error message you have been seeing could be a browser issue. Try using modern browsers like Chrome, Firefox, Edge, etc. These modern browsers should help you avoid getting the same. But having said that, please also note that these browsers should be updated to it’s latest version.