That won't/shouldn't be the reason for your crash... generally Electrum connects to around 10 nodes (these connections are where it downloads the blockchain headers from)... the actual Server you send through is listed below the node count and there should be only one.
What version of Electrum are you using?
What version of MacOS are you using?
Have you tried previewing your transaction before sending?
Do all other functions of Electrum work ok?
I am using electrum 2.9.2
My os is osx 10.10 (Yosemite)
Everything works fine only when i hit send electrum crashes
Electrum is also hogging 100% of my cpu probably due to the large number of connected nodes
Its there a way to limit the amount of nodes electrum connects to? Maybe 2-3 max so it stops crashing?
If multibit was still functional i would not even bother with this crappy wallet.....