Server problem

[18:30:54] [Server thread/INFO]: Starting minecraft server version 1.7.10
[18:31:29] [Server thread/INFO]: Loading properties
[18:31:29] [Server thread/INFO]: Default game type: SURVIVAL
[18:31:29] [Server thread/INFO]: Generating keypair
[18:31:29] [Server thread/INFO]: Starting Minecraft server on 25.4.71.167:25565
[18:31:30] [Server thread/WARN]: **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!
[18:31:30] [Server thread/WARN]: The server will make no attempt to authenticate usernames. Beware.
[18:31:30] [Server thread/WARN]: While this makes the game possible to play without internet access, it also opens up the ability for hackers to connect with any username they choose.
[18:31:30] [Server thread/WARN]: To change this, set "online-mode" to "true" in the server.properties file.
[18:31:53] [Server thread/INFO]: Preparing level "Monde Trop Bien"
[18:31:54] [Server thread/INFO]: Preparing start region for level 0
[18:31:55] [Server thread/INFO]: Done (2,272s)! For help, type "help" or "?"
[18:33:10] [Server thread/INFO]: Phobyx[/25.4.71.167:61331] logged in with entity id 346 at (3.973546096222725, 63.0, -136.2201336459476)
[18:33:10] [Server thread/INFO]: Phobyx joined the game
[18:34:12] [Server thread/INFO]: batap[/25.78.5.16:53906] logged in with entity id 1183 at (-102.79828085698617, 70.0, -117.61173749242798)
[18:34:12] [Server thread/INFO]: batap joined the game
[18:34:14] [Server thread/INFO]: batap lost connection: TranslatableComponent{key='disconnect.genericReason', args=[Internal Exception: java.io.IOException: Une connexion établie a été abandonnée par un logiciel de votre ordinateur hôte], siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null}}
[18:34:14] [Server thread/INFO]: batap left the game
[18:44:35] [Server thread/INFO]: Phobyx lost connection: TextComponent{text='Disconnected', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null}}
[18:44:35] [Server thread/INFO]: Phobyx left the game
[18:55:39] [Server thread/INFO]: FlambaxYT[/25.142.189.78:59401] logged in with entity id 10423 at (-101.5, 70.0, -98.5)
[18:55:39] [Server thread/INFO]: FlambaxYT joined the game
[18:56:18] [Server thread/INFO]: FlambaxYT has just earned the achievement [Taking Inventory]
[18:57:15] [Server thread/INFO]: FlambaxYT lost connection: TextComponent{text='Disconnected', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null}}
[18:57:15] [Server thread/INFO]: FlambaxYT left the game
[19:10:00] [Server thread/INFO]: Stopping the server
[19:10:01] [Server thread/INFO]: Stopping server
[19:10:01] [Server thread/INFO]: Saving players
[19:10:01] [Server thread/INFO]: Saving worlds
[19:10:01] [Server thread/INFO]: Saving chunks for level 'Monde Trop Bien'/Overworld
[19:10:01] [Server thread/INFO]: Saving chunks for level 'Monde Trop Bien'/Nether
[19:10:01] [Server thread/INFO]: Saving chunks for level 'Monde Trop Bien'/The End
[19:10:01] [Server thread/INFO]: Saving chunks for level 'Monde Trop Bien'/Twilight Forest
[19:10:01] [Server thread/INFO]: Saving chunks for level 'Monde Trop Bien'/Underdark
[19:10:01] [Server thread/INFO]: Saving chunks for level 'Monde Trop Bien'/Dungeon
[19:10:01] [Server thread/INFO]: Saving chunks for level 'Monde Trop Bien'/Spirit World
[19:10:01] [Server thread/INFO]: Saving chunks for level 'Monde Trop Bien'/Torment
[19:10:01] [Server thread/INFO]: Saving chunks for level 'Monde Trop Bien'/Mirror
[19:10:01] [Server thread/INFO]: Saving chunks for level 'Monde Trop Bien'/Bedrock
[19:10:01] [Server thread/INFO]: Saving chunks for level 'Monde Trop Bien'/The Outer Lands
[19:10:01] [Server thread/INFO]: Saving chunks for level 'Monde Trop Bien'/The Last Millenium