Server hosting: "Couldn't CRC map" (FastDL)

[SinusStudios]

[B]Edit (IMPORTANT):[/B]

I found out the webspace host i was using (bplaced.net) explicitly forbids this kind of usage for their free webspaces.
That's pretty much the entire story. I simply bought a cheap webspace and everything is working fine now.

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Hello forum, i have an issue with setting up / using FastDL.
I've switched from server loading and WorkshopDL to FastDL because i want to have the freedom of using all kinds of custom content and being able to use self-updated old addons that won't work through the workshop. So i've read tons of guides online on FastDL and this is my setup:

server.cfg:

sv_forcepreload "1"
sv_allowupload "1"
sv_allowdownload "1"
sv_downloadurl "http://webserver.com/ttt/content"

Inside that folder is only the maps folder currently since i only need to get maps working for now through FastDL. No addons or any custom lua.
The folder previously contained only bzip2'ed files but for error elimination i'm not using any bzip2 files for now, .bsp's only.
garrysmod/maps/ contains the same set of maps (exactly same files, i've downloaded and md5'ed them myself again to be 100% sure).
I've also made sure the content folder on the webserver and all files and folders within are readable and executable. To confirm this i directly entered a map url into my browser and it downloaded the map with a good speed and no problems.

I've also made sure i have none of those maps inside my local maps folder, i've even re-installed vanilla Gmod using file verification and what not to ensure it's not my problem.
But... i still get "Couldn't CRC map: xyz.bsp | Disconnecting" and the server drops me for a "bad map".
After that the map is still not on my disk in any way so there wasn't a download.

How can i fix this? Any advice? Don't know if this is the right place to ask as well but "Help & Support" looks like for client problems only.
I'm quick to respond and will add any needed information asap.

Edit: Enabled download debug information, this is all client log info i can collect:

-= TTTServerUrl =-
http://webserver.com/ttt/loading_screen/
terrortown
ttt_aircraft_v1b
10
76561198249948620
Requesting 366 lua files from the server
Map [maps/ttt_aircraft_v1b.bsp] has incorrect BSP version (1348031555 should be 20).
Couldn't CRC map maps/ttt_aircraft_v1b.bsp, disconnecting


Host_Error: Bad map

Best regards, Daniel =)

[SleepyMode]

It says the map has an incorrect BSP version, I don't think it has too much to do with the FastDL, but rather with the map file itself.

[SinusStudios]

[QUOTE=SleepyMode;52303378]It says the map has an incorrect BSP version, I don't think it has too much to do with the FastDL, but rather with the map file itself.[/QUOTE]

I thought the same but it's with [B]all[/B] maps. I've put the exact same .bsp's into my local maps folder and everything is working just fine.

Edit:
For instance i downloaded ttt_nuclear_power_v3, extracted using latest gmad extractor + my local gmad.exe, bzip2'ed and put .bsp and .bsp.bzip2 into server/maps and bzip2 only into webserver/fastdl/maps.
I also checked if the naming scheme has to be .bsp and .bzip2 (without leading .bsp as in .bsp.bzip2) but that also changes nothing.
I still get the same error that the bsp version is wrong and should be 20. I also reuploaded all files to reassure that there is no corrupt upload.

[SleepyMode]

Can you try to decompile and compile the map again?

[SinusStudios]

[QUOTE=SleepyMode;52303385]Can you try to decompile and compile the map again?[/QUOTE]

Unfortunately i can't get Source Multi Tool to run, it says it needs Source SDK base 2013 multiplayer which i downloaded and ran once fine but Source Multi Tool still gives me this error. Also guides online are talking about some Source SDK folder but i have no clue which one is meant and where it needs to go, there is no such thing inside the Source Multi Tool folder.

I've came to this because i looked up on how to make maps for Gmod, hoping that would allow me to recompile the map but i'm still very new to this and i didn't know i had to do crazy stuff like this just to get a private FastDL TTT server running...

Edit: I'll just leave the files here if someone wants to poke around in them. I'm positive they are just fine. Again, i've grabbed the bzip2 file directly from the webserver and extracted it - same .md5 as source .bsp file.

The folder contains the .gma i grabbed using steam workshop downloader (it's the same .md5 when i subscribe to the item and use the auto-downloaded .gma file) as well as the Gmad extracted folder containing the .bsp and a thumbnail and then the .bsp.bzip2 i've created using the latest bzip2 and the argument for best compression (--best / -9).

[url]https://mega.nz/#F!FwlUDRaQ!tFEuW44nuZjKYN-aQfXV_w[/url] (some files are still uploading, shouldn't take too long)