Cannot join. The following mod event handlers are not identical between you and the server. This indicates that the following mods are not multiplayer (save/load) safe. (see the log file for more detail):

Same as 0.3.9 https://mods.factorio.com/mod/AutoDeconstruct/discussion/654e903aebac5940e3365e20

Yep, here's the relevant log:

1460.472 Error ClientMultiplayerManager.cpp:1088: mod-AutoDeconstruct was registered for the following nth_ticks when the map was saved but has not re-registered them as a result of loading: 17
1460.472 Error ClientMultiplayerManager.cpp:99: MultiplayerManager failed: "" + multiplayer.script-event-mismatch + "
" + "
mod-AutoDeconstruct"
1460.475 Info ClientMultiplayerManager.cpp:610: UpdateTick(12016797) changing state from(ConnectedLoadingMap) to(Failed)
1473.321 Info ClientMultiplayerManager.cpp:211: Quitting multiplayer connection.
1473.321 Info ClientMultiplayerManager.cpp:610: UpdateTick(12016797) changing state from(Failed) to(Disconnected)
1473.909 Info UDPSocket.cpp:233: Closing socket
1473.909 Info UDPSocket.cpp:263: Socket closed

Thanks for the report. The bug was much stupider than I realized. Please try 0.3.11 now!