I've updated StackIdeas on the issue.
I suggested they try changing the FRoC setting as you suggested.
For me it seemed to work, but I'll let them decide as they did suggest it does not happen all the time:
I noticed that sometimes will not hit this Javascript error but sometimes it hit.
They should also provide additional input into this issue tomorrow.
On their last post, they indicated they were able to provide guidance on this issue, if necessary.
However, they also indicated the issue is being cases by the Helix Javascript file:
I think you have to report this issue to them even they slow respond to you because that error reported is related to their Javascript file .../templates/shaper_helixultimate/js/bootstrap.bundle.min.js.