Hi,
The game keeps crashing after 5-10 minutes in game.
Logs:
Debug.txt
[19:19:32:536]- ----DEBUG FILE----
[19:19:32:536]- Production Line Debug File version: alpha 1.56
[19:19:32:536]-
GetLogicalProcessorInformation results:
[19:19:32:536]- Number of NUMA nodes: 1
[19:19:32:536]- Number of physical processor packages: 1
[19:19:32:536]- Number of processor cores: 4
[19:19:32:536]- Number of logical processors: 4
[19:19:32:536]- Number of processor L1/L2/L3 caches: 8/4/1
[19:19:32:552]- Desktop resolution is 1920 x 1080
[19:19:32:552]- Windowed but matching fullscreen dimensions == initialising borderless window mode
[19:19:32:552]- Creating main window
[19:19:32:552]- window created
[19:19:32:552]- setting window focus...
[19:19:32:567]- updating window...
[19:19:32:567]- showing window...
[19:19:32:567]- Initialising gfx engine...
[19:19:32:740]- gfx engine initialised
[19:19:32:756]- Initialising Sound Engine
[19:19:32:805]- Finished Initialising Sound Engine
[19:19:32:805]- Playing music: [data/sounds/music/track1.ogg]
[19:19:33:698]- Attempting to initialise steam
[19:19:33:871]- Steam initialisation success
[19:19:33:871]- Requesting steam stats...
[19:19:33:871]- ...Steam stats requested
[19:19:33:871]- Steam connection successful
[19:19:33:996]- STEAMWORKS: 1 files enumerated for workshop
[19:19:33:996]- STEAMWORKS:Requesting workshop subscription 0...
[19:19:34:170]- Received stats and achievements from Steam
[19:19:34:333]- STEAMWORKS: File details obtained for ... Better Marketing V1.22
[19:19:34:333]- Workshop content up to date, skipping download...
[19:19:34:333]- Please wait... 0
[19:19:37:204]- About to load game: [autosave]
[19:19:37:829]- Failed to find spreadsheet: C:\Users\Dennis\Documents/My Games/productionline/mods/MyMod/data/simulation/resources/resources.csv
[19:19:37:829]- Failed to open file; [C:\Users\Dennis\Documents/My Games/productionline/mods/MyMod/data/simulation/resources/resource_combos.txt]
[19:19:37:829]- GBufferedFile failed to open file [C:\Users\Dennis\Documents/My Games/productionline/mods/MyMod/data/simulation/resources/resource_combos.txt]
[19:19:37:829]- Failed to find spreadsheet: C:\Users\Dennis\Documents/My Games/productionline/mods/MyMod/data/simulation/features/features.csv
[19:19:37:829]- Failed to find spreadsheet: C:\Users\Dennis\Documents/My Games/productionline/mods/MyMod/data/simulation/research/research.csv
[19:19:38:409]- Failed to find spreadsheet: C:\Users\Dennis\Documents/My Games/productionline/mods/MyMod/data/simulation/tasks/tasks.csv
[19:19:38:429]- Map Loading used 159,848 kb of RAM
[19:19:41:100]- Slot loading used 278,648 kb of RAM
[19:20:4:182]- Vehicle loading used 360,824 kb of RAM
[19:20:4:802]- Resource loading used 17,372 kb of RAM
[19:20:5:303]- Sales records loading used 2,332 kb of RAM
[19:20:7:927]- Stock loading used 266,064 kb of RAM
[19:20:20:218]- Game Load complete
[19:21:24:748]- Vehicle features Driver Airbag just upgraded its availability
[19:21:33:878]- Vehicle features Driver Airbag just upgraded its availability
[19:21:59:537]- Vehicle features Spare Wheel just upgraded its availability
[19:22:9:377]- Vehicle features Bluetooth Phone Support just upgraded its availability
[19:22:22:368]- Vehicle features Driver Airbag just upgraded its availability
[19:22:35:620]- Vehicle features Spare Wheel just upgraded its availability
[19:22:46:417]- Vehicle features Spare Wheel just upgraded its availability
[19:23:31:817]- Vehicle features Bluetooth Phone Support just upgraded its availability
[19:23:44:201]- Vehicle features Spare Wheel just upgraded its availability
[19:23:55:370]- Vehicle features Driver Airbag just upgraded its availability
[19:24:6:958]- Vehicle features Bluetooth Phone Support just upgraded its availability
[19:24:17:540]- Vehicle features Spare Wheel just upgraded its availability
[19:24:31:521]- Vehicle features Chrome Fittings just upgraded its availability
[19:24:40:930]- Attempting to stop music
[19:24:40:930]- Inside critical section
[19:24:40:930]- Callling stop() on sound engine
[19:24:40:930]- Music stopped
[19:24:40:930]- Playing music: [data/sounds/music/track4.ogg]
[19:25:14:130]- Vehicle features Driver Airbag just upgraded its availability
[19:25:26:800]- Vehicle features Lane Departure Warning just upgraded its availability
[19:25:51:645]- Vehicle features Bluetooth Phone Support just upgraded its availability
[19:26:32:600]- Vehicle features Bluetooth Phone Support just upgraded its availability
[19:26:39:470]- About to save game: [autosave]
[19:26:39:476]- Failed to set Save file buffer:..\src\SIM_SaveGame.cpp 213
[19:26:47:939]- Game Save complete
[19:27:10:3]- Vehicle features Bluetooth Phone Support just upgraded its availability
[19:27:36:909]- Vehicle features Chrome Fittings just upgraded its availability
[19:27:50:69]- Vehicle features Nappa Leather Seats just upgraded its availability
[19:28:0:875]- Vehicle features Nappa Leather Seats just upgraded its availability
[19:28:13:844]- Vehicle features Chrome Fittings just upgraded its availability
[19:28:24:599]- Vehicle features Chrome Fittings just upgraded its availability
[19:28:40:315]- Vehicle features Nappa Leather Seats just upgraded its availability
[19:28:51:6]- Vehicle features Lane Departure Warning just upgraded its availability
errors.txt
24/7/2018 - 19::25 - Failed to allocate GBufferedFile data - Error: [Unknown error]
24/7/2018 - 19::25 - D3DERR_INVALIDCALL - Error: [Unknown error]
24/7/2018 - 19::25 - CreateTextureD3DX - Error: [Unknown error]
drawdebug.txt
Initialising 3D Engine in windowed mode
Adaptor count: 1
Adaptor selection: -1
Collecting information for adaptor: 0
Driver : aticfx32.dll
Description : AMD Radeon HD 7900 Series
DeviceName : \\.\DISPLAY1
Checking For Shader Support
NumSimultaneousRTs:4
hal_caps.PixelShaderVersion >= D3DPS_VERSION(2, 0)
hal_caps.PixelShaderVersion >= D3DPS_VERSION(3, 0)
MaxTextureWidth:16384
MaxTextureHeight:16384
About to Create 3D Device with width: 1920 and height : 1080
Attempting hardware Vertex Processing
Finished initialising 3D Engine
Initialising Render target of 4096 X 4096 rt_dynamic_sprite_sheet
rt_dynamic_sprite_sheet
Initialising Render target of 1920 X 1080 rt_offscreen
rt_offscreen
Initialising Render target of 1920 X 1080 rt_lightmaps
rt_lightmaps
Initialising Render target of 4096 X 2048 rt_car_sprite_cache
rt_car_sprite_cache
Initialising Render target of 256 X 256 rt_save_thumbnail
rt_save_thumbnail
Creating shader from file:[data/shaders/area_delete.fx]
Creating shader from file:[data/shaders/conveyor_mode.fx]
Creating shader from file:[data/shaders/greyscale.fx]
Creating shader from file:[data/shaders/highlight_sprite.fx]
Creating shader from file:[data/shaders/lightmap.fx]
Creating shader from file:[data/shaders/overlay.fx]
Error creating texture:[sparks.dds]
Error creating texture:[car5_ne.dds]
Error creating texture:[car6_ne.dds]
Error creating texture:[car2_ne.dds]
Error creating texture:[car3_ne.dds]
Tested it also on a other PC (same savegame) and did a reinstall of the game.
If you want the save game, please ask! I can email it to you 
Thanks!