I always defer to you on matters like this, and I thought I was quoting advice you’d given in the past, so, NO I am not sure. 
It’s pretty clear that the connections is the issue and increasing the RAM to 25% of 32GB might help in general, but isn’t the cause of the error.
EDIT:
Ha! That’s exactly what I remembered, except it looks like I was going to go over 50%. . .