Infinity 1.7 Server wont open

[BOTandrew]

• What OS are you running? Win7 64bit
• Using local server (downloaded the server from ftb website)
• Infinity 1.7.10
• Added no mods
• Using i5-3570 3.4GHz, 8GB RAM, Radeon Hd 7870 Oc

I wanted to play the Infinity 1.7 ModPacks with a friend on a local server. so i downlaoded the server files from the ftb launcher.But the Problem is the server wont open. it always stops at a certain point:

Spoiler: Last Lines of server Log

[21:39:30] [ic2-poolthread-1/INFO] [IC2/IC2]: UU graph built with 8793 nodes after 23027 ms.
[21:39:50] [Server thread/INFO] [FML/]: Unloading dimension -7
[21:39:50] [Server thread/INFO] [FML/]: Unloading dimension -100
[21:39:50] [Server thread/INFO] [FML/]: Unloading dimension -37
[21:39:50] [Server thread/INFO] [FML/]: Unloading dimension -38
[21:39:50] [Server thread/INFO] [FML/]: Unloading dimension -42
[21:39:50] [Server thread/INFO] [FML/]: Unloading dimension -19
[21:39:50] [Server thread/INFO] [FML/]: Unloading dimension 1
[21:40:13] [Server thread/DEBUG] [FML/]: Gathering id map for writing to world save world
[21:40:38] [Server thread/DEBUG] [FML/]: The world 4e3c95db (world) may have leaked: first encounter (5 occurences).

[21:40:38] [Server thread/DEBUG] [FML/]: The world 40229c51 (world) may have leaked: first encounter (5 occurences).

[21:40:38] [Server thread/DEBUG] [FML/]: The world 3139f5ca (world) may have leaked: first encounter (5 occurences).

[21:40:38] [Server thread/DEBUG] [FML/]: The world 55f1469e (world) may have leaked: first encounter (5 occurences).

[21:40:38] [Server thread/DEBUG] [FML/]: The world 24f97e82 (world) may have leaked: first encounter (5 occurences).

[21:40:38] [Server thread/DEBUG] [FML/]: The world 28181ab8 (world) may have leaked: first encounter (5 occurences).

[21:40:38] [Server thread/DEBUG] [FML/]: The world 331b24ac (world) may have leaked: first encounter (5 occurences).

[21:40:58] [Server thread/DEBUG] [FML/]: Gathering id map for writing to world save world
[21:41:28] [Server thread/DEBUG] [FML/]: The world 4e3c95db (world) may have leaked: seen 10 times.

[21:41:28] [Server thread/DEBUG] [FML/]: The world 40229c51 (world) may have leaked: seen 10 times.

[21:41:28] [Server thread/DEBUG] [FML/]: The world 3139f5ca (world) may have leaked: seen 10 times.

[21:41:28] [Server thread/DEBUG] [FML/]: The world 55f1469e (world) may have leaked: seen 10 times.

[21:41:28] [Server thread/DEBUG] [FML/]: The world 24f97e82 (world) may have leaked: seen 10 times.

[21:41:28] [Server thread/DEBUG] [FML/]: The world 28181ab8 (world) may have leaked: seen 10 times.

[21:41:28] [Server thread/DEBUG] [FML/]: The world 331b24ac (world) may have leaked: seen 10 times.

I hope someone can help me fix this to get the server running.
Thanks in advance

I tried to run the direwolf20 server and i get the same "the world xxxxx (world) may have leaked: seen xx times" logs