Fixed some crashes (1.4.12b4)

MusicBot/src/MusicPlayer.cpp

@@ -78,11 +78,16 @@ void manager::loadProviders(const std::string& path) {
     }
 
     deque<fs::path> paths;
-    for(const auto& entry : fs::directory_iterator(dir)){
+    error_code error_code{};
+    for(const auto& entry : fs::directory_iterator(dir, error_code)){
         if(!entry.path().has_extension()) continue;
         if(entry.path().extension().string() == ".so")
             paths.push_back(entry.path());
     }
+    if(error_code) {
+        log::log(log::err, "Failed to scan the target directory (" + dir.string() + "): " + error_code.message());
+        return;
+    }
     std::sort(paths.begin(), paths.end(), [](const fs::path& a, const fs::path& b){ return a.filename().string() < b.filename().string(); });
 
     int index = 0;