So. It's the first problem that appears to me.
When I enter on the exit portal of the Level 3, on Requiem, the game simply crash.
Below, my hpl.log.
-------- THE HPL ENGINE LOG ------------
Creating Engine Modules
--------------------------------------------------------
 Creating graphics module
 Creating system module
 Creating resource module
 Creating input module
 Creating sound module
 Creating physics module
 Creating ai module
 Creating gui module
 Creating haptic module
 Creating scene module
--------------------------------------------------------
Initializing Resources Module
--------------------------------------------------------
 Creating resource managers
 Misc Creation
--------------------------------------------------------
Initializing Graphics Module
--------------------------------------------------------
 Init low level graphics
 Setting video mode: 800 x 600 - 32 bpp
 Init Glee...OK
 Setting up OpenGL
  Max texture image units: 8
  Max texture coord units: 8
  Two sided stencil: 1
  Vertex Buffer Object: 1
  Anisotropic filtering: 1
  Max Anisotropic degree: 16
  Multisampling: 1
  Vertex Program: 1
  Fragment Program: 1
  NV Register Combiners: 0
  NV Register Combiners Stages: 146782664
  ATI Fragment Shader: 0
 Creating graphic systems
  Creating Renderer2D
  Renderer2D created
  Creating Renderer3D
   Load Renderer3D gpu programs:
    Extrude
    Diffuse Vertex
    Diffuse Fragment
    Fog
   Creating fog textures: Solid Additive Alpha 
   init sky box
  Renderer3D created
 Creating screen buffers size 800.000000 : 600.000000
 Creating programs
 CG ERROR : "The compile returned an error."
 -----------------------------------
core/programs/PostEffect_Motion_fp.cg(28) : error C5013: profile does not support "for" statements and "for" could not be unrolled.
 -----------------------------------
CG: Error loading: 'core/programs/PostEffect_Motion_fp.cg'!
ERROR: Couldn't create program 'PostEffect_Motion_fp.cg'
Dynamic loops in motion blur fp not supported, loading static instead.
  RendererPostEffects created
 Adding engine materials
--------------------------------------------------------
Initializing Sound Module
--------------------------------------------------------
 Initializing OpenAL.
  Trying to open audio device... Success!
  Device name: PulseAudio Software
  Number of mono sources: 32
  Vendor name: OpenAL Community
  Renderer: OpenAL Soft
  OpenAL Version Supported: 1.1
  EFX: 0
  Output Devices: 
    PulseAudio Software
    ALSA Software on default
    ALSA Software on HDA Intel [ALC880 Analog] (hw:0,0)
    PortAudio Software
--------------------------------------------------------
Initializing Game Module
--------------------------------------------------------
 Adding engine updates
 Initializing script functions
--------------------------------------------------------
User Initialization
--------------------------------------------------------
Initializing Penumbra: Requiem
  Version    $Rev: 3011 $
  Date    $Date: 2010-02-06 22:43:42 +0000 $
Checking Supported Profiles
  Profile CG_PROFILE_VP20 is supported
  Profile CG_PROFILE_ARBVP1 is supported
  Profile CG_PROFILE_ARBFP1 is supported
Trying to load vertex program!
Success!
WARNING: Could not find language file entry 'PreMenuText'
All set up done, starting game!
--------------------------------------------------------
Game Running
--------------------------------------------------------
WARNING: Could not find language file entry 'F8'
Loading collada for 'expansion01/maps/level03.dae' took: 1438 ms
ERROR: Couldn't create SoundEntity 'unbreak_impact_fence_med.snt'
WARNING: Couldn't preload sound 'unbreak_impact_fence_med'
WARNING: Texture 'lambert9-fx' was not found!
WARNING: Texture 'lambert9-fx' was not found!
WARNING: Texture 'pasted__portal1-fx' was not found!
ERROR: Couldn't create material '.mat'
WARNING: Could not load material ''
Lever 'lever01' loaded state: 2
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry  joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry  joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry  joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry  joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry  joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry  joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry  joint parten '' is missing! Might be connected to bone.
WARNING: No collider found for 'general_portal_closed.ent'
WARNING: No collider found for 'general_portal_open.ent'
WARNING: No shapes for sub mesh 'propellerShape' with group: ''
ERROR: Couldn't find game element for entity 'propellerlarge01'
Loading collada for 'expansion01/maps/level03.dae' took: 1385 ms
ERROR: Couldn't create SoundEntity 'unbreak_impact_fence_med.snt'
WARNING: Couldn't preload sound 'unbreak_impact_fence_med'
WARNING: Texture 'lambert9-fx' was not found!
WARNING: Texture 'lambert9-fx' was not found!
WARNING: Texture 'pasted__portal1-fx' was not found!
ERROR: Couldn't create material '.mat'
WARNING: Could not load material ''
Lever 'lever01' loaded state: 2
WARNING: No collider found for 'general_portal_closed.ent'
WARNING: No collider found for 'general_portal_open.ent'
WARNING: No shapes for sub mesh 'propellerShape' with group: ''
ERROR: Couldn't find game element for entity 'propellerlarge01'
Loading collada for 'expansion01/maps/level03.dae' took: 1382 ms
ERROR: Couldn't create SoundEntity 'unbreak_impact_fence_med.snt'
WARNING: Couldn't preload sound 'unbreak_impact_fence_med'
WARNING: Texture 'lambert9-fx' was not found!
WARNING: Texture 'lambert9-fx' was not found!
WARNING: Texture 'pasted__portal1-fx' was not found!
ERROR: Couldn't create material '.mat'
WARNING: Could not load material ''
Lever 'lever01' loaded state: 2
WARNING: No collider found for 'general_portal_closed.ent'
WARNING: No collider found for 'general_portal_open.ent'
WARNING: No shapes for sub mesh 'propellerShape' with group: ''
ERROR: Couldn't find game element for entity 'propellerlarge01'
WARNING: particle system 0 in antigrav1 does not exist anymore!
WARNING: particle system 1 in antigrav1 does not exist anymore!
WARNING: particle system 2 in antigrav1 does not exist anymore!
WARNING: particle system 0 in antigrav2 does not exist anymore!
WARNING: particle system 1 in antigrav2 does not exist anymore!
WARNING: particle system 2 in antigrav2 does not exist anymore!
WARNING: particle system 0 in antigrav3 does not exist anymore!
WARNING: particle system 1 in antigrav3 does not exist anymore!
WARNING: particle system 2 in antigrav3 does not exist anymore!
WARNING: particle system 0 in antigrav1 does not exist anymore!
WARNING: particle system 1 in antigrav1 does not exist anymore!
WARNING: particle system 2 in antigrav1 does not exist anymore!
WARNING: particle system 0 in antigrav2 does not exist anymore!
WARNING: particle system 1 in antigrav2 does not exist anymore!
WARNING: particle system 2 in antigrav2 does not exist anymore!
WARNING: particle system 0 in antigrav3 does not exist anymore!
WARNING: particle system 1 in antigrav3 does not exist anymore!
WARNING: particle system 2 in antigrav3 does not exist anymore!
Loading collada for 'expansion01/maps/level04.dae' took: 624 ms
WARNING: Texture 'decals_hanging_sewergrowth.jpg' does not have a pow2 size!
Thanks.