@song19891121 The permissions were refactored so that by default, if a category has no permissions checked (in the Access Control modal), nobody can access it.
This is a departure from the previous behaviour, which was:
Registered users can access and post
Guests can access but cannot post
Which was confusing for some.
Long story shot
The upgrade script should transparently convert your existing permissions properly, but clearly there are some bugs. When you upgrade, go through all of your categories and ensure the permissions are set correctly.
Ah, after some sleep and reviewing your post again, I can confirm that the net.js error message you are seeing is caused by a plugin. If you paste your entire console log here, we'll be able to show you where it is giving the plugin issue.
I'm simply having the issue of my NodeBB will start in dev mode, but will not start in normal mode.