Buying a spawner or using a give command (/i or /give) gives me the spawner but when placed it turns into a pig spawner. I'm using the Spigot 1.7/1.8 protocol hack.

@RyanDaWalrus says the jar on the Bukkit page works (b330) and does not produce this issue. However, the latest (b345) and b342 do not work either for this.

@SupaHam Sorry have to make a correction. I meant that the official build of Essentials works

Please pastebin your server startup log

http://hastebin.com/jomahaxese.vbs

@vemacs @SupaHam Can you guys help?

Not sure, try pasting the whole startup, not just essentials.

`This Spigot build supports Minecraft clients both of versions 1.7.x and of 1.8.x.
*** It is imperative that backups be taken before running this build on your server! ***
Please report any such issues to http://www.spigotmc.org/, stating your client, server, and if applicable BungeeCord versions.
*** Any bug reports not running the very latest versions of these softwares will be ignored ***

[12:56:21 INFO]: Starting minecraft server version 1.7.10
[12:56:21 INFO]: Loading properties
[12:56:21 INFO]: Default game type: SURVIVAL
[12:56:22 INFO]: This server is running CraftBukkit version git-Spigot-1.7.9-R0.2-208-ge0f2e95 (MC: 1.7.10) (Implementing API vernsion 1.7.10-R0.1-SNAPSHOT)
[12:56:22 INFO]: Debug logging is disabled
[12:56:22 INFO]: Server Ping Player Sample Count: 12
[12:56:22 INFO]: Using 4 threads for Netty based IO
[12:56:22 INFO]: Generating keypair
[12:56:23 INFO]: Starting Minecraft server on :25567
[12:56:24 INFO]: Set PluginClassLoader as parallel capable
[12:56:25 INFO]: [Essentials] Loading Essentials v2.0.1-b319
[12:56:25 INFO]: [EssentialsSpawn] Loading EssentialsSpawn v2.0.1-b319
[12:56:25 INFO]: [EssentialsChat] Loading EssentialsChat v2.0.1-b319
[12:56:25 INFO]: [SilkSpawners] Loading SilkSpawners v3.7.2
[12:56:25 WARN]: *** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!
[12:56:25 WARN]: The server will make no attempt to authenticate usernames. Beware.
[12:56:25 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.
[12:56:25 WARN]: To change this, set "online-mode" to "true" in the server.properties file.
[12:56:25 INFO]: **** Beginning UUID conversion, this may take A LONG time ****
[12:56:25 INFO]: Preparing level "world"
[12:56:25 INFO]: -------- World Settings For [world] --------
[12:56:25 INFO]: Item Merge Radius: 2.5
[12:56:25 INFO]: Item Despawn Rate: 6000
[12:56:25 INFO]: Chunks to Grow per Tick: 650
[12:56:25 INFO]: Clear tick list: false
[12:56:25 INFO]: View Distance: 10
[12:56:25 INFO]: Experience Merge Radius: 3.0
[12:56:25 INFO]: Zombie Aggressive Towards Villager: true
[12:56:25 INFO]: Arrow Despawn Rate: 1200
[12:56:25 INFO]: Allow Zombie Pigmen to spawn from portal blocks: true
[12:56:25 INFO]: Custom Map Seeds: Village: 10387312 Feature: 14357617
[12:56:25 INFO]: Max Entity Collisions: 8
[12:56:25 INFO]: Cactus Growth Modifier: 100%
[12:56:25 INFO]: Cane Growth Modifier: 100%
[12:56:25 INFO]: Melon Growth Modifier: 100%
[12:56:25 INFO]: Mushroom Growth Modifier: 100%
[12:56:25 INFO]: Pumpkin Growth Modifier: 100%
[12:56:25 INFO]: Sapling Growth Modifier: 100%
[12:56:25 INFO]: Wheat Growth Modifier: 100%
[12:56:25 INFO]: Entity Activation Range: An 32 / Mo 32 / Mi 16
[12:56:25 INFO]: Alternative Hopper Ticking: false
[12:56:25 INFO]: Hopper Transfer: 8 Hopper Check: 8 Hopper Amount: 1
[12:56:25 INFO]: Mob Spawn Range: 4
[12:56:25 INFO]: Entity Tracking Range: Pl 48 / An 48 / Mo 48 / Mi 32 / Other 64
[12:56:25 INFO]: Anti X-Ray: true
[12:56:25 INFO]: Engine Mode: 1
[12:56:25 INFO]: Hidden Blocks: [14, 15, 16, 21, 48, 49, 54, 56, 73, 74, 82, 129, 130]
[12:56:25 INFO]: Replace Blocks: [1, 5]
[12:56:25 INFO]: Nerfing mobs spawned from spawners: false
[12:56:25 INFO]: Structure Info Saving: true
[12:56:25 INFO]: Sending up to 5 chunks per packet
[12:56:25 INFO]: Max TNT Explosions: 100
[12:56:25 INFO]: Random Lighting Updates: false
[12:56:26 INFO]: -------- World Settings For [world_nether] --------
[12:56:26 INFO]: Item Merge Radius: 2.5
[12:56:26 INFO]: Item Despawn Rate: 6000
[12:56:26 INFO]: Chunks to Grow per Tick: 650
[12:56:26 INFO]: Clear tick list: false
[12:56:26 INFO]: View Distance: 10
[12:56:26 INFO]: Experience Merge Radius: 3.0
[12:56:26 INFO]: Zombie Aggressive Towards Villager: true
[12:56:26 INFO]: Arrow Despawn Rate: 1200
[12:56:26 INFO]: Allow Zombie Pigmen to spawn from portal blocks: true
[12:56:26 INFO]: Custom Map Seeds: Village: 10387312 Feature: 14357617
[12:56:26 INFO]: Max Entity Collisions: 8
[12:56:26 INFO]: Cactus Growth Modifier: 100%
[12:56:26 INFO]: Cane Growth Modifier: 100%
[12:56:26 INFO]: Melon Growth Modifier: 100%
[12:56:26 INFO]: Mushroom Growth Modifier: 100%
[12:56:26 INFO]: Pumpkin Growth Modifier: 100%
[12:56:26 INFO]: Sapling Growth Modifier: 100%
[12:56:26 INFO]: Wheat Growth Modifier: 100%
[12:56:26 INFO]: Entity Activation Range: An 32 / Mo 32 / Mi 16
[12:56:26 INFO]: Alternative Hopper Ticking: false
[12:56:26 INFO]: Hopper Transfer: 8 Hopper Check: 8 Hopper Amount: 1
[12:56:26 INFO]: Mob Spawn Range: 4
[12:56:26 INFO]: Entity Tracking Range: Pl 48 / An 48 / Mo 48 / Mi 32 / Other 64
[12:56:26 INFO]: Anti X-Ray: true
[12:56:26 INFO]: Engine Mode: 1
[12:56:26 INFO]: Hidden Blocks: [14, 15, 16, 21, 48, 49, 54, 56, 73, 74, 82, 129, 130]
[12:56:26 INFO]: Replace Blocks: [1, 5]
[12:56:26 INFO]: Nerfing mobs spawned from spawners: false
[12:56:26 INFO]: Structure Info Saving: true
[12:56:26 INFO]: Sending up to 5 chunks per packet
[12:56:26 INFO]: Max TNT Explosions: 100
[12:56:26 INFO]: Random Lighting Updates: false
[12:56:26 INFO]: -------- World Settings For [world_the_end] --------
[12:56:26 INFO]: Item Merge Radius: 2.5
[12:56:26 INFO]: Item Despawn Rate: 6000
[12:56:26 INFO]: Chunks to Grow per Tick: 650
[12:56:26 INFO]: Clear tick list: false
[12:56:26 INFO]: View Distance: 10
[12:56:26 INFO]: Experience Merge Radius: 3.0
[12:56:26 INFO]: Zombie Aggressive Towards Villager: true
[12:56:26 INFO]: Arrow Despawn Rate: 1200
[12:56:26 INFO]: Allow Zombie Pigmen to spawn from portal blocks: true
[12:56:26 INFO]: Custom Map Seeds: Village: 10387312 Feature: 14357617
[12:56:26 INFO]: Max Entity Collisions: 8
[12:56:26 INFO]: Cactus Growth Modifier: 100%
[12:56:26 INFO]: Cane Growth Modifier: 100%
[12:56:26 INFO]: Melon Growth Modifier: 100%
[12:56:26 INFO]: Mushroom Growth Modifier: 100%
[12:56:26 INFO]: Pumpkin Growth Modifier: 100%
[12:56:26 INFO]: Sapling Growth Modifier: 100%
[12:56:26 INFO]: Wheat Growth Modifier: 100%
[12:56:26 INFO]: Entity Activation Range: An 32 / Mo 32 / Mi 16
[12:56:26 INFO]: Alternative Hopper Ticking: false
[12:56:26 INFO]: Hopper Transfer: 8 Hopper Check: 8 Hopper Amount: 1
[12:56:26 INFO]: Mob Spawn Range: 4
[12:56:26 INFO]: Entity Tracking Range: Pl 48 / An 48 / Mo 48 / Mi 32 / Other 64
[12:56:26 INFO]: Anti X-Ray: true
[12:56:26 INFO]: Engine Mode: 1
[12:56:26 INFO]: Hidden Blocks: [14, 15, 16, 21, 48, 49, 54, 56, 73, 74, 82, 129, 130]
[12:56:26 INFO]: Replace Blocks: [1, 5]
[12:56:26 INFO]: Nerfing mobs spawned from spawners: false
[12:56:26 INFO]: Structure Info Saving: true
[12:56:26 INFO]: Sending up to 5 chunks per packet
[12:56:26 INFO]: Max TNT Explosions: 100
[12:56:26 INFO]: Random Lighting Updates: false
[12:56:26 INFO]: Preparing start region for level 0 (Seed: -5596025855547154753)
[12:56:27 INFO]: Preparing spawn area: 1%
[12:56:28 INFO]: Preparing spawn area: 14%
[12:56:29 INFO]: Preparing spawn area: 39%
[12:56:30 INFO]: Preparing spawn area: 79%
[12:56:30 INFO]: Preparing start region for level 1 (Seed: -5596025855547154753)
[12:56:31 INFO]: Preparing spawn area: 48%
[12:56:32 INFO]: Preparing start region for level 2 (Seed: -5596025855547154753)
[12:56:33 INFO]: [Essentials] Enabling Essentials v2.0.1-b319
[12:56:33 INFO]: Using locale en_US
[12:56:33 INFO]: [Essentials] Using legacy item data provider as mob spawner provider.
[12:56:33 INFO]: [Essentials] Using legacy item data provider as spawn egg provider.
[12:56:34 INFO]: Using locale en_US
[12:56:34 INFO]: [Essentials] Starting Metrics. Opt-out using the global PluginMetrics config.
[12:56:34 INFO]: [Essentials] Using config file enhanced permissions.
[12:56:34 INFO]: [Essentials] Permissions listed in as player-commands will be given to all users.
[12:56:34 INFO]: [EssentialsSpawn] Enabling EssentialsSpawn v2.0.1-b319
[12:56:34 INFO]: [EssentialsChat] Enabling EssentialsChat v2.0.1-b319
[12:56:34 INFO]: [SilkSpawners] Enabling SilkSpawners v3.7.2
[12:56:35 INFO]: [SilkSpawners] WorldGuard was not found and support is disabled
[12:56:35 INFO]: [SilkSpawners] Loading support for v1_7_R4
[12:56:35 INFO]: [SilkSpawners] AutoUpdater is enabled.
[12:56:37 INFO]: [SilkSpawners] Result from AutoUpdater is: NO_UPDATE
[12:56:37 INFO]: [SilkSpawners] BarAPI was not found and remains disabled!
[12:56:37 INFO]: Server permissions file permissions.yml is empty, ignoring it
[12:56:37 INFO]: Done (12.419s)! For help, type "help" or "?"`

We only support PaperSpigot 1.7.10, as older versions have a bunch of unpatched security and denial of service issues. Upgrade to that. I can't link you to a JAR, but a very popular mirror site that starts with Y has them.