Sorry to be the bearer of bad news but no one from MSMW staff have responded to this forum or email contacts for over 8 months. I'm just another MSMW client lending a helping hand :-).
I have created and will be maintaining a new open-source community for ex-MSMW users under the brand name BackStop Themes (a name change was required since the brand MySiteMyWay is owned by the WebTreats company).
Go to https://backstopthemes.com and download bst-fusion.
Regarding your issue...if switching plugins fixes things...problem solved. If you want to go back to your old plugin you would need to enable the debugger on your WordPress site and see what warnings & error messages are being displayed.
I noticed that your sidebar on the following page contains default MSMW links...you might want to delete these links or hide the sidebar. Just a suggestion :-)