Cannot access domain in Site Builder !

Cannot access domain in Site Builder !

Cannot login to my domain / Site Builder to make changes.  After login (same as always), I see just a white screen, although my site www.TowelTagid.com is Published /up & running.

Just saw the Urgent message for DKIM but cannot access my domains DNS Manager to complete this task, so this apparently is Not the problem.  I have not logged in for 1+ months, & therefore no changes have been made recently.  I see others with same problem have been waiting with no response for quite some time & that has me extremely concerned :(  Has anyone figured out the problem as of yet ?