Electrum Won't Run on Mac

[iceworld4]

Downloaded Electrum-3.3.4 for Mac to update my existing wallet as old version was no longer syncing with servers however now I cannot access Electrum at all, it just doesn't open. Receive the below when trying to open; i'm a bit useless so would appreciate any advice.

Traceback (most recent call last):
  File "run_electrum", line 339, in <module>
  File "electrum/daemon.py", line 337, in init_gui
  File "/Users/voegtlin/Library/Python/3.6/lib/python/site-packages/PyInstaller/loader/pyimod03_importers.py", line 627, in exec_module
  File "electrum/gui/qt/__init__.py", line 38, in <module>
ImportError: dlopen(/var/folders/pm/wxg25_sn3v7c2b874lz5y4sw0000gn/T/_MEI0RGhlX/PyQt5/QtGui.so, 2): Symbol not found: __os_log_default
  Referenced from: /var/folders/pm/wxg25_sn3v7c2b874lz5y4sw0000gn/T/_MEI0RGhlX/PyQt5/../QtCore (which was built for Mac OS X 10.11)
  Expected in: /usr/lib/libSystem.B.dylib
 in /var/folders/pm/wxg25_sn3v7c2b874lz5y4sw0000gn/T/_MEI0RGhlX/PyQt5/../QtCore
[918] Failed to execute script run_electrum
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[OmegaStarScream]

I had a similar issue, mine was solved by updating Windows 10. Try to update your OS and to install/update PyQT5 and Python3 again.

[Pmalek]

It is usually an error associated with an out-of-date OS. Try updating your OS like OmegaStarScream suggested. If that doesn't help try this, maybe it will sort out your problems:

I had similar problem due to corrupt wallet save. Move your wallet files to a temp folded and reopen electrum. It will default to creating a default wallet, which you can do or direct it to a known good wallet.

[Abdussamad]

you need minimum MacOS 10.11 like it says in the error message.

[BitMaxz]

You need to check this one below.

What can I do if Electrum won't start?

Make sure that you have backup seed/private keys for safety purposes.