heres the crash report if it helps
---- Minecraft Crash Report ---- // Everything's going to plan. No, really, that was supposed to happen. Time: 1/22/15 7:48 PM Description: Loading entity NBT java.lang.NullPointerException: Loading entity NBT at adw.a(SourceFile:191) at wx.f(SourceFile:1251) at aqf.a(SourceFile:135) at aqf.a(SourceFile:258) at cnt.a(SourceFile:19) at cnt.a(SourceFile:14) at cnt.a(SourceFile:9) at cno.a(SourceFile:114) at cno.a(SourceFile:102) at ckn.a(SourceFile:605) at cjh.a(SourceFile:1231) at cjh.a(SourceFile:1136) at cjh.b(SourceFile:989) at bss.at(SourceFile:906) at bss.a(SourceFile:317) at net.minecraft.client.main.Main.main(SourceFile:124) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at adw.a(SourceFile:191) -- Entity being loaded -- Details: Entity Type: FallingSand (adw) Entity ID: 1027 Entity Name: Falling Block Entity's Exact location: 0.00, 0.00, 0.00 Entity's Block location: 0.00,0.00,0.00 - World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511) Entity's Momentum: 0.00, 0.00, 0.00 Entity's Rider: ~~ERROR~~ NullPointerException: null Entity's Vehicle: ~~ERROR~~ NullPointerException: null Stacktrace: at wx.f(SourceFile:1251) at aqf.a(SourceFile:135) at aqf.a(SourceFile:258) at cnt.a(SourceFile:19) at cnt.a(SourceFile:14) at cnt.a(SourceFile:9) -- Block Entity Details -- Details: Name: MobSpawner // bde Block type: ID #52 (tile.mobSpawner // axo) Block data value: 0 / 0x0 / 0b0000 Block location: World: (213,65,536), Chunk: (at 5,4,8 in 13,33; contains blocks 208,0,528 to 223,255,543), Region: (0,1; contains chunks 0,32 to 31,63, blocks 0,0,512 to 511,255,1023) Actual block type: ID #52 (tile.mobSpawner // axo) Actual block data value: 0 / 0x0 / 0b0000 Stacktrace: at cno.a(SourceFile:114) at cno.a(SourceFile:102) at ckn.a(SourceFile:605) at cjh.a(SourceFile:1231) at cjh.a(SourceFile:1136) -- Affected level -- Details: Level name: MpServer All players: 1 total; [cin['PHISICA'/323, l='MpServer', x=211.48, y=62.65, z=535.86]] Chunk stats: MultiplayerChunkCache: 10, 10 Level seed: 0 Level generator: ID 00 - default, ver 1. Features enabled: false Level generator options: Level spawn location: -75.00,63.00,383.00 - World: (-75,63,383), Chunk: (at 5,3,15 in -5,23; contains blocks -80,0,368 to -65,255,383), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511) Level time: 17868424 game time, 202383 day time Level dimension: 0 Level storage version: 0x00000 - Unknown? Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false) Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false Forced entities: 91 total; [adj['F'/410, l='MpServer', x=233.19, y=52.34, z=555.50], adj['F'/411, l='MpServer', x=234.25, y=63.63, z=544.25], adj['F'/408, l='MpServer', x=232.75, y=63.63, z=551.75], adj['F'/409, l='MpServer', x=234.75, y=51.63, z=556.75], adj['F'/414, l='MpServer', x=232.75, y=63.63, z=552.25], adj['F'/415, l='MpServer', x=232.75, y=63.63, z=546.25], adj['F'/412, l='MpServer', x=236.25, y=63.63, z=550.75], adj['F'/413, l='MpServer', x=232.25, y=63.63, z=552.25], adj['F'/402, l='MpServer', x=236.75, y=51.63, z=554.25], adj['F'/403, l='MpServer', x=234.25, y=63.63, z=551.25], adj['F'/400, l='MpServer', x=236.78, y=52.34, z=554.50], adj['F'/401, l='MpServer', x=235.75, y=51.63, z=556.75], adj['F'/287, l='MpServer', x=232.25, y=63.63, z=543.25], adj['F'/406, l='MpServer', x=234.25, y=63.63, z=546.75], adj['F'/407, l='MpServer', x=236.25, y=63.63, z=545.75], adj['F'/404, l='MpServer', x=232.25, y=63.63, z=545.25], adj['F'/405, l='MpServer', x=234.75, y=63.63, z=550.25], adj['F'/395, l='MpServer', x=236.75, y=63.63, z=546.25], adj['F'/394, l='MpServer', x=232.25, y=63.63, z=550.25], adj['F'/393, l='MpServer', x=234.75, y=51.63, z=553.25], adj['F'/392, l='MpServer', x=235.25, y=51.63, z=556.75], adj['F'/399, l='MpServer', x=232.25, y=63.63, z=544.75], adj['F'/398, l='MpServer', x=236.25, y=51.63, z=554.25], adj['F'/397, l='MpServer', x=234.25, y=63.63, z=545.25], adj['F'/396, l='MpServer', x=236.75, y=63.63, z=546.75], adj['F'/387, l='MpServer', x=232.75, y=63.63, z=552.75], adj['F'/386, l='MpServer', x=238.75, y=63.63, z=545.75], adj['F'/385, l='MpServer', x=236.75, y=63.63, z=545.75], adj['F'/384, l='MpServer', x=238.75, y=63.63, z=546.75], adj['F'/391, l='MpServer', x=236.75, y=51.63, z=555.25], adj['F'/390, l='MpServer', x=236.75, y=63.63, z=550.75], adj['F'/389, l='MpServer', x=234.25, y=51.63, z=556.25], adj['F'/388, l='MpServer', x=238.75, y=63.63, z=549.75], adj['F'/440, l='MpServer', x=233.50, y=52.00, z=554.50], adj['F'/305, l='MpServer', x=227.50, y=64.00, z=528.50], adj['F'/441, l='MpServer', x=234.75, y=63.63, z=552.25], adj['F'/304, l='MpServer', x=227.50, y=64.34, z=528.19], adj['F'/442, l='MpServer', x=236.25, y=63.63, z=549.75], adj['F'/307, l='MpServer', x=232.78, y=64.34, z=543.50], adj['F'/443, l='MpServer', x=232.25, y=63.63, z=546.75], adj['F'/306, l='MpServer', x=234.78, y=64.34, z=543.50], adj['F'/444, l='MpServer', x=232.75, y=63.63, z=551.25], acm['Sheep'/309, l='MpServer', x=229.44, y=65.00, z=529.75], adj['F'/445, l='MpServer', x=235.50, y=52.34, z=556.78], adj['F'/308, l='MpServer', x=234.50, y=64.00, z=543.50], abw['F'/446, l='MpServer', x=235.50, y=52.09, z=553.50], abw['F'/447, l='MpServer', x=233.50, y=52.09, z=555.50], adj['F'/432, l='MpServer', x=233.75, y=51.63, z=555.75], abw['F'/433, l='MpServer', x=236.50, y=52.09, z=554.50], adj['F'/434, l='MpServer', x=233.25, y=51.63, z=555.25], adj['F'/435, l='MpServer', x=234.25, y=63.63, z=552.25], adj['F'/436, l='MpServer', x=234.75, y=63.63, z=552.75], adj['F'/437, l='MpServer', x=238.25, y=63.63, z=550.75], adj['F'/438, l='MpServer', x=236.75, y=63.63, z=549.25], adj['F'/439, l='MpServer', x=234.75, y=63.63, z=546.75], adj['F'/425, l='MpServer', x=233.25, y=51.63, z=555.75], adj['F'/288, l='MpServer', x=234.75, y=63.63, z=543.75], adj['F'/424, l='MpServer', x=236.25, y=51.63, z=555.25], adj['F'/289, l='MpServer', x=227.75, y=63.63, z=528.25], adj['F'/427, l='MpServer', x=236.78, y=52.34, z=555.50], adj['F'/290, l='MpServer', x=234.25, y=63.63, z=543.75], adj['F'/426, l='MpServer', x=236.25, y=63.63, z=546.25], adj['F'/291, l='MpServer', x=227.25, y=63.63, z=528.25], adj['F'/429, l='MpServer', x=235.25, y=51.63, z=553.75], adj['F'/292, l='MpServer', x=232.75, y=63.63, z=543.75], adj['F'/428, l='MpServer', x=232.25, y=63.63, z=551.75], adj['F'/293, l='MpServer', x=232.25, y=63.63, z=543.75], adj['F'/431, l='MpServer', x=235.25, y=51.63, z=556.25], adj['F'/294, l='MpServer', x=234.75, y=63.63, z=543.25], adj['F'/430, l='MpServer', x=234.50, y=52.34, z=553.19], adj['F'/295, l='MpServer', x=232.75, y=63.63, z=543.25], adj['F'/417, l='MpServer', x=232.25, y=63.63, z=544.25], adj['F'/296, l='MpServer', x=227.75, y=63.63, z=528.75], adj['F'/416, l='MpServer', x=232.75, y=63.63, z=545.25], adj['F'/297, l='MpServer', x=227.25, y=63.63, z=528.75], adj['F'/419, l='MpServer', x=234.75, y=63.63, z=545.25], adj['F'/298, l='MpServer', x=234.25, y=63.63, z=543.25], adj['F'/418, l='MpServer', x=235.50, y=52.00, z=556.50], abw['F'/299, l='MpServer', x=227.50, y=64.09, z=528.50], adj['F'/421, l='MpServer', x=233.50, y=52.00, z=555.50], agn['Shepherd'/300, l='MpServer', x=227.69, y=65.00, z=529.72], adj['F'/420, l='MpServer', x=232.75, y=63.63, z=544.75], adj['F'/301, l='MpServer', x=232.50, y=64.00, z=543.50], abw['F'/302, l='MpServer', x=234.50, y=64.09, z=543.50], abw['F'/303, l='MpServer', x=232.50, y=64.09, z=543.50], cin['PHISICA'/323, l='MpServer', x=211.48, y=62.65, z=535.86], adj['F'/381, l='MpServer', x=232.25, y=63.63, z=550.75], adj['F'/380, l='MpServer', x=234.25, y=63.63, z=549.75], adj['F'/383, l='MpServer', x=232.75, y=63.63, z=546.75], adj['F'/382, l='MpServer', x=233.75, y=51.63, z=554.75], adj['F'/379, l='MpServer', x=234.75, y=63.63, z=544.75]] Retry entities: 0 total; [] Server brand: vanilla Server type: Integrated singleplayer server Stacktrace: at cem.a(SourceFile:308) at bss.b(SourceFile:2278) at bss.a(SourceFile:326) at net.minecraft.client.main.Main.main(SourceFile:124) -- System Details -- Details: Minecraft Version: 1.8.1 Operating System: Windows 8 (x86) version 6.2 Java Version: 1.7.0_60, Oracle Corporation Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation Memory: 93387832 bytes (89 MB) / 291897344 bytes (278 MB) up to 523501568 bytes (499 MB) JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95 Launched Version: 1.8.1 LWJGL: 2.9.1 OpenGL: AMD Radeon HD 8330 GL version 4.2.12198 Compatibility Profile Context 12.102.4.0, ATI Technologies Inc. GL Caps: Using GL 1.3 multitexturing. Using GL 1.3 texture combiners. Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported. Shaders are available because OpenGL 2.1 is supported. VBOs are available because OpenGL 1.5 is supported. Using VBOs: No Is Modded: Probably not. Jar signature remains and client brand is untouched. Type: Client (map_client.txt) Resource Packs: [] Current Language: English (US) Profiler Position: N/A (disabled)
phisica
heres the crash report if it helps