Direwolf20 1.7 1.4.1(Server) won't start after updating from 1.3.1

[DHez]

Title:

Direwolf20 1.7 1.4.1(Server) won't start after updating from 1.3.1​

Launcher Version:

​

Modpack:

Direwolf20 1.7​

Modpack Version:

1.4.1​

Log Link:

https://www.dropbox.com/s/2k1uahf9fyx6bgo/fml-server-3.log?dl=0​

Details of the issue:

The log comes from my dropbox because it was too big for pastebin.
Server stuck at startup. After messages like "This world was saved with mod XX version XX and it is now at version XX, things may not work well..". The server has been in the "working" state for almost 30 minutes. When I try to login via client, it tells me I have to wait for the server to start up. THanks in advance​

 

[kitharo]

I have the exact same problem.
After the update dosn't work I set up a new server. Everything works well (connecting, playing etc.). Then I restored my world backup and restartet the server.
Now the server stucks again.

[07:50:02] [Server thread/INFO]: Preparing level "world"

This is the last entry since 5 minutes.

 

[mc.crab]

At the end of the log:

There are 1 missing blocks and items in this save.
If you continue the missing blocks/items will get removed.
A world backup will be automatically created in your saves directory.

Missing Blocks/Items:
EnderIO:itemGasConduit


Run the command /fml confirm or or /fml cancel to proceed.
Alternatively start the server with -Dfml.queryResult=confirm or -Dfml.queryResult=cancel to preselect the answer.