Would you take a look at this and let me know what is causing the error messages
thanks
07/20/2014 - 20:02:01: [SM] Native "SDKCall" reported: Entity 542 is not valid
L 07/20/2014 - 20:02:01: [SM] Displaying call stack trace for plugin "deathmatch.smx":
L 07/20/2014 - 20:02:01: [SM] [0] Line 1307, deathmatch/spawns.sp::spawns_ComputeValidSpawns()
L 07/20/2014 - 20:02:01: [SM] [1] Line 1382, deathmatch/spawns.sp::spawns_SelectSpawnPoint()
L 07/20/2014 - 20:02:01: [SM] [2] Line 60, deathmatch/dhook.sp::dhook_EntSelectSpawnPoint()
L 07/20/2014 - 20:02:18: Error log file session closed.
1:24 sm exts list
17

1:24 [SM] Displaying 12 extensions:
[01] Automatic Updater (1.6.0): Updates SourceMod gamedata files
[02] Webternet (1.6.0): Extension for interacting with URLs
[03] CS Tools (1.6.0): CS extended functionality
[04] BinTools (1.6.0): Low-level C/C++ Calling API
[05] SDK Tools (1.6.0): Source SDK Tools
[06] Client Preferences (1.6.0): Saves client preference settings
[07] SQLite (1.6.0): SQLite Driver
[08] Top Menus (1.6.0): Creates sorted nested menus
[09] Socket (3.0.1): Socket extension for SourceMod
[10] DHooks (1.0.13-alpha): Allows basic dynamic hooks
[11] SDK Hooks (1.6.0): Source SDK Hooks
[12] Regex (1.6.0): Provides regex natives for plugins
17

2:27 [SM] Listing 35 plugins:
01 "[CS:GO/CSS] AbNeR Round End Sounds" (1.3fix) by AbNeR_CSS
02 "Admin File Reader" (1.6.0) by AlliedModders LLC
03 "Admin Help" (1.6.0) by AlliedModders LLC
04 "Admin Menu" (1.6.0) by AlliedModders LLC
05 "Anti-Flood" (1.6.0) by AlliedModders LLC
06 "Plugin Autoupdater" (1.5) by MikeJS
07 "Basic Ban Commands" (1.6.0) by AlliedModders LLC
08 "Basic Chat" (1.6.0) by AlliedModders LLC
09 "Basic Comm Control" (1.6.0) by AlliedModders LLC
10 "Basic Commands" (1.6.0) by AlliedModders LLC
11 "Basic Info Triggers" (1.6.0) by AlliedModders LLC
12 "Basic Votes" (1.6.0) by AlliedModders LLC
13 "Client Preferences" (1.6.0) by AlliedModders LLC
14 "CS:GO Skins Chooser" (1.2.3) by Root
15 "ct_respawn_only.smx"
16 "Deathmatch" (0.11.1) by H3bus
17 "Fun Commands" (1.6.0) by AlliedModders LLC
18 "Fun Votes" (1.6.0) by AlliedModders LLC
19 "Healthkit From Dead (HFD)" (0.4) by Bacardi
20 "Increase Nade Damage" (1.0.3) by AUSTINBOTS! - SavSin
21 "Nextmap" (1.6.0) by AlliedModders LLC
22 "Player Commands" (1.6.0) by AlliedModders LLC
23 "Quake Sounds v3" (3.4.2) by Spartan_C001
24 "Reserved Slots" (1.6.0) by AlliedModders LLC
25 "Reset Score for CS:GO" (1.1) by Sheepdude
26 "[ANY] Dev Cmds" (1.1) by SilverShot
27 "SM File/Folder Downloader and Precacher" (1.4) by SWAT_88
28 "sm_weaponzoom" (1.6c) by [foo] bar
29 "Sound Commands" (1.6.0) by AlliedModders LLC
30 "spawntools7" (0.9) by meng
31 "Sprint: Source Plugin" (0.15)
32 "Stamm" (2.2.5) by Popoklopsi
33 "t_respawn_only.smx"
34 "[CS:GO] Weapon Mod" (1.8-fix) by Blodia, GabenNewell
35 "SpeedUp" (1.0.1) by Mosalar, Bacardi