game crash - see log attached

[ginandtonicbot]

game_23685505.log

end bit of log is as follows:

debug: Moderator event for FirePro5: Created a ping of type 'Attack'
debug: Session time: 00:17:26 Game time: 00:11:42 Heap: 416.0M / 394.5M
debug: Session time: 00:17:36 Game time: 00:11:51 Heap: 416.0M / 395.2M
debug: Moderator event for PsychedelicSlayr: Self-destructed 1 units
debug: Session time: 00:17:56 Game time: 00:12:09 Heap: 416.0M / 397.0M
debug: Moderator event for FirePro5: Created a ping of type 'Attack'
debug: Session time: 00:18:16 Game time: 00:12:25 Heap: 448.0M / 407.3M
debug: [uiutil.lua, function UIFile()] - Unable to find file:/textures/ui/uef/icons/units/unknown_icon.dds
debug: Session time: 00:18:26 Game time: 00:12:32 Heap: 448.0M / 409.7M
debug: Moderator event for PsychedelicSlayr: Self-destructed 1 units
warning: Error running OnAdjacentTo script in Entity ueb1201 at 26d0f608: ...ver\gamedata\lua.nx2\lua\sim\units\structureunit.lua(787): table index is nil
stack traceback:
...ver\gamedata\lua.nx2\lua\sim\units\structureunit.lua(787): in function <...ver\gamedata\lua.nx2\lua\sim\units\structureunit.lua:776>
warning: Error running OnAdjacentTo script in Entity ueb1201 at 26d0f608: ...ver\gamedata\lua.nx2\lua\sim\units\structureunit.lua(787): table index is nil
stack traceback:
...ver\gamedata\lua.nx2\lua\sim\units\structureunit.lua(787): in function <...ver\gamedata\lua.nx2\lua\sim\units\structureunit.lua:776>
debug: Session time: 00:18:36 Game time: 00:12:42 Heap: 448.0M / 411.5M
info: CWldSession::DoBeat() unknown entity id (0x2ff01249) supplied in a pose update.
debug: Session time: 00:18:46 Game time: 00:12:51 Heap: 448.0M / 415.6M
debug: Session time: 00:19:06 Game time: 00:13:09 Heap: 448.0M / 417.1M
debug: Moderator event for PsychedelicSlayr: Self-destructed 1 units
debug: Session time: 00:19:16 Game time: 00:13:18 Heap: 448.0M / 416.4M
debug: Session time: 00:19:26 Game time: 00:13:27 Heap: 448.0M / 418.0M
debug: Moderator event for Incomplete_Idio: Self-destructed 1 units
debug: Session time: 00:19:36 Game time: 00:13:35 Heap: 448.0M / 419.0M

[magge]

Do you have any mods active, if so, does disabling those fix the issue?
Can you reproduce the error every time?