townzhost.com is and frag.gs is not for sa-mp 0.3.7 and I can't doenload any other versions of sa-mp in the official site and if I will download it in dracoblue the sa-mp will crash
It should support 0.3.7, Download 0.3.7 Linux server and and compile it with the gamemode and upload it to your directory, If the permission is denied for the sampsv03 (whateva) then you can contact support then.