[19:05:58] [Client thread/INFO]: Setting user: CoolDude185
[19:05:58] [Client thread/INFO]: (Session ID is token:692a119ce7cf4c5fb1854b0e403002f3:783b3030bfd84d8788eb33a5e0b39c25)
[19:06:03] [Client thread/INFO]: LWJGL Version: 2.9.1
[19:06:04] [Client thread/INFO]: Reloading ResourceManager: Default
[19:06:05] [Client thread/WARN]: File minecraft:sounds/mob/ghast/fireball.ogg does not exist, cannot add it to event minecraft:item.fireCharge.use
[19:06:05] [Sound Library Loader/INFO]: Starting up SoundSystem...
[19:06:06] [Thread-5/INFO]: Initializing LWJGL OpenAL
[19:06:06] [Thread-5/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[19:06:06] [Thread-5/INFO]: OpenAL initialized.
[19:06:06] [Sound Library Loader/INFO]: Sound engine started
[19:06:10] [Client thread/INFO]: Created: 512x512 textures-atlas
[19:06:16] [Client thread/ERROR]: Exception reading C:\Users\alannon\AppData\Roaming\.minecraft\saves\Villagw\level.dat
java.util.zip.ZipException: Not in GZIP format
at java.util.zip.GZIPInputStream.readHeader(Unknown Source) ~[?:1.7.0_65]
at java.util.zip.GZIPInputStream.<init>(Unknown Source) ~[?:1.7.0_65]
at java.util.zip.GZIPInputStream.<init>(Unknown Source) ~[?:1.7.0_65]
at fz.a(SourceFile:13) ~[1.8.jar:?]
at bqn.c(SourceFile:62) [1.8.jar:?]
at bqj.b(SourceFile:52) [1.8.jar:?]
at bxg.f(SourceFile:87) [1.8.jar:?]
at bxg.b(SourceFile:59) [1.8.jar:?]
at bxf.a(SourceFile:368) [1.8.jar:?]
at bsu.a(SourceFile:809) [1.8.jar:?]
at bxq.a(SourceFile:216) [1.8.jar:?]
at bxf.a(SourceFile:342) [1.8.jar:?]
at bxq.a(SourceFile:471) [1.8.jar:?]
at bxf.k(SourceFile:405) [1.8.jar:?]
at bxf.p(SourceFile:382) [1.8.jar:?]
at bsu.r(SourceFile:1473) [1.8.jar:?]
at bsu.as(SourceFile:877) [1.8.jar:?]
at bsu.a(SourceFile:314) [1.8.jar:?]
at net.minecraft.client.main.Main.main(SourceFile:120) [1.8.jar:?]
[19:06:16] [Client thread/ERROR]: Exception reading C:\Users\alannon\AppData\Roaming\.minecraft\saves\Villagw\level.dat_old
java.util.zip.ZipException: Not in GZIP format
at java.util.zip.GZIPInputStream.readHeader(Unknown Source) ~[?:1.7.0_65]
at java.util.zip.GZIPInputStream.<init>(Unknown Source) ~[?:1.7.0_65]
at java.util.zip.GZIPInputStream.<init>(Unknown Source) ~[?:1.7.0_65]
at fz.a(SourceFile:13) ~[1.8.jar:?]
at bqn.c(SourceFile:73) [1.8.jar:?]
at bqj.b(SourceFile:52) [1.8.jar:?]
at bxg.f(SourceFile:87) [1.8.jar:?]
at bxg.b(SourceFile:59) [1.8.jar:?]
at bxf.a(SourceFile:368) [1.8.jar:?]
at bsu.a(SourceFile:809) [1.8.jar:?]
at bxq.a(SourceFile:216) [1.8.jar:?]
at bxf.a(SourceFile:342) [1.8.jar:?]
at bxq.a(SourceFile:471) [1.8.jar:?]
at bxf.k(SourceFile:405) [1.8.jar:?]
at bxf.p(SourceFile:382) [1.8.jar:?]
at bsu.r(SourceFile:1473) [1.8.jar:?]
at bsu.as(SourceFile:877) [1.8.jar:?]
at bsu.a(SourceFile:314) [1.8.jar:?]
at net.minecraft.client.main.Main.main(SourceFile:120) [1.8.jar:?]
[19:06:22] [Server thread/INFO]: Starting integrated minecraft server version 1.8
[19:06:22] [Server thread/INFO]: Generating keypair
[19:06:22] [Server thread/INFO]: Preparing start region for level 0
[19:06:23] [Server thread/INFO]: Preparing spawn area: 38%
[19:06:24] [Server thread/INFO]: Preparing spawn area: 97%
[19:06:25] [Server thread/INFO]: Changing view distance to 12, from 10
[19:06:25] [Server thread/INFO]: CoolDude185[local:E:48855dea] logged in with entity id 43 at (1033.5318907964656, 199.0, -386.48750001192093)
[19:06:25] [Server thread/INFO]: CoolDude185 joined the game
[19:06:29] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded?

Running 3514ms behind, skipping 70 tick(s)
[19:06:53] [Client thread/INFO]: [CHAT] /gamemode, /give, /gamerule
[19:06:55] [Server thread/INFO]: [CoolDude185: Set own game mode to Survival Mode]
[19:06:55] [Client thread/INFO]: [CHAT] Your game mode has been updated
[19:07:18] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded?

Running 9013ms behind, skipping 180 tick(s)
[19:08:15] [Server thread/INFO]: [@] CoolDude185 Wrong door
[19:08:15] [Client thread/INFO]: [CHAT] [@] CoolDude185 Wrong door
[19:08:23] [Server thread/INFO]: Saving and pausing game...
[19:08:23] [Server thread/INFO]: Saving chunks for level 'PayDay The Minecraft Heist'/Overworld
[19:08:23] [Server thread/INFO]: Saving chunks for level 'PayDay The Minecraft Heist'/Nether
[19:08:23] [Server thread/INFO]: Saving chunks for level 'PayDay The Minecraft Heist'/The End
[19:08:25] [Server thread/INFO]: Stopping server
[19:08:25] [Server thread/INFO]: Saving players
[19:08:25] [Server thread/INFO]: Saving worlds
[19:08:25] [Server thread/INFO]: Saving chunks for level 'PayDay The Minecraft Heist'/Overworld
[19:08:25] [Server thread/INFO]: Saving chunks for level 'PayDay The Minecraft Heist'/Nether
[19:08:25] [Server thread/INFO]: Saving chunks for level 'PayDay The Minecraft Heist'/The End
[19:08:26] [Client thread/INFO]: Stopping!
[19:08:26] [Client thread/INFO]: SoundSystem shutting down...

Why it skip ticks