Did you try the alternative DLL?
https://github.com/Koenvh1/ets2-local-r ... ough-it-isIf that doesn't work, then please try the alternative dll and copy it to the \Steam\SteamApps\common\Euro Truck Simulator 2\bin\win_x64\plugins folder. (The alternative only works on 64-bit)
You can take a look at the Issues on Github too. Maybe there's a solution:
https://github.com/Koenvh1/ets2-local-radio/issues/137
or
https://github.com/Koenvh1/ets2-local-radio/issues/155