Did you find vorbisfile.dll to your recycle bin or not. Try to download this and replace to your GTA:SAMP Directory.When I do what said @Polarbear I want to enter
The server, entered the original game(Gta San Andreas)not samp
i will install new gta savorbisfile.dll is distributed with copies of GTA:SA (not SA:MP itself) and so if you reinstalled GTA:SA, the file would be restored. Or you could just download the file I provided in my previous post. So to answer your question, no - reinstalling SAMP won't fix it.