From the description I was suspecting that perhaps we would need to move a new page to be the new personal home page one. However, as you mentioned about the system hanging, let's give a try to the following:
Check if the same will happen if you run Confluence under Plugin safe mode: https://confluence.atlassian.com/display/UPM/Disabling+and+enabling+add-ons#Disablingandenablingadd-ons-Disablingorenablingalladd-ons(usingSafeMode)
If so, please, can you confirm whch info is displayed while you try to create a new page? It can be checked throgh the atlassian-confluence.log file which is inside <Confluence Home/logs> directory.
Once we check this, we can try to create a new ticket in https://support.atlassian.com
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