Memory Overflow?

[Lestradae]

I am suddenly getting a lot of those these days:

[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Zzzz Oolite Shipyards Extension Beta312.oxp/Textures/cone_auv.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Zzzz Oolite Shipyards Extension Beta312.oxp/Textures/ghavialtex.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Zzzz Oolite Shipyards Extension Beta312.oxp/Textures/mussurana_texture.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Zzzz Oolite Shipyards Extension Beta312.oxp/Textures/MosTex.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Zzzz Oolite Shipyards Extension Beta312.oxp/Textures/gecko_reduxM2.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Zzzz Oolite Shipyards Extension Beta312.oxp/Textures/Paladin.png
[files.notFound]: ----- WARNING: Could not find texture file "cweta-witchdrive-specular.png". Used default no textures material instead.
[files.notFound]: ----- WARNING: Could not find texture file "cweta-witchdrive-specular.png". Used default no textures material instead.
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Zzzz Oolite Shipyards Extension Beta312.oxp/Textures/asp-civvy-hr_tex.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/galcops.oxp/Textures/viper-gc-tex.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Zzzz Oolite Shipyards Extension Beta312.oxp/Textures/cobra1_redux1M2.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Lave.oxp/Textures/paddytex.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Lave.oxp/Textures/paddyfintex.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Lave.oxp/Textures/paddytex1.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Lave.oxp/Textures/paddyfintex1.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Lave.oxp/Textures/eatcobratex.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Lave.oxp/Textures/mortrantexL.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Lave.oxp/Textures/anacondaPTtex.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Hotrods.oxp/Textures/krait_red_redux.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Lave.oxp/Textures/trinketex.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Lave.oxp/Textures/trinketex-i.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Lave.oxp/Textures/addtex1.png
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Lave.oxp/Textures/addtex2.png
[script.debug.onOff]: SCRIPT debug messages ON
[script.debug.message]: SCRIPT debugMessage: spawning rings for LAVE
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Lave.oxp/Textures/addwstex1.png
[script.debug.note.addShips]: DEBUG Spawned ship with shipdata key 'ring01'.
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/Lave.oxp/Textures/addwstex2.png
[script.debug.note.addShips]: DEBUG Spawned ship with shipdata key 'ring02'.
[general.error.allocationFailure]: Failed to allocate space (4194304 bytes) for texture AddOns/ringpod.oxp/Textures/ringpod.png
[script.debug.note.addShips]: DEBUG Spawned ship with shipdata key 'ring03'.
[script.debug.note.addShips]: DEBUG Spawned ship with shipdata key 'ring04'.
[script.debug.onOff]: SCRIPT debug messages OFF
[general.error.allocationFailure]: Failed to allocate space (1048576 bytes) for texture AddOns/ringpod.oxp/Textures/solid-hoop-skin.png

Does this mean that my system has not enough raw RAM for all things oxp going on inside, or is there another reason?

Reminds me a bit of Screet's disappearing textures observation. Didn't observe something like that ingame, though, but the game has started to behave slower, erratical and sometimes crashes when undocking or witchjumping.

[another_commander]

Yes, low memory would be the most probable reason. You can check what's happening by running the game with Task Manager open and noting how much memory is utilized. If these messages appear with your memory usage bars on the red, then that's your culprit.