Hi Gürkan,
thanks, just updated it, but I have the same problem:
$ shotcut  
          [Info   ] <Application::Application> Starting Shotcut
          version 22.10.05  
          [Info   ] <Application::Application> Linux version  
          [Info   ] <Application::Application> number of logical
          cores = 8  
          [Info   ] <Application::Application> locale =
          QLocale(English, Latin, United States)  
          [Info   ] <Application::Application> install dir =
          "/usr/bin"  
          [Debug  ] <ShotcutSettings::log> language "en_US"  
          [Debug  ] <ShotcutSettings::log> deinterlacer "onefield"
           
          [Debug  ] <ShotcutSettings::log> external monitor ""  
          [Debug  ] <ShotcutSettings::log> GPU processing false  
          [Debug  ] <ShotcutSettings::log> interpolation
          "bilinear"  
          [Debug  ] <ShotcutSettings::log> video mode
          "atsc_1080p_30"  
          [Debug  ] <ShotcutSettings::log> realtime true  
          [Debug  ] <ShotcutSettings::log> audio channels 2  
          [Debug  ] <MainWindow::changeTheme> begin  
          [Debug  ] <MainWindow::MainWindow> begin  
          [Info   ] <MainWindow::MainWindow> device pixel ratio =
          1  
          [Info   ] <GLTestWidget::GLTestWidget> OpenGL context
          version 4 6  
          [Debug  ] <Mlt::Controller::Controller> begin  
          [libprotobuf ERROR google/protobuf/descriptor_database.cc:120]
          File already exists in database: opencv-caffe.proto
          
          [libprotobuf FATAL google/protobuf/descriptor.cc:1382] CHECK
          failed: GeneratedDatabase()->Add(encoded_file_descriptor,
          size):  
          terminate called after throwing an instance of
          'google::protobuf::FatalException'
          
           what():  CHECK failed:
          GeneratedDatabase()->Add(encoded_file_descriptor, size):  
          Aborted
      
I also created a new user and I have the same problem.
I can't understand which database it's talking about and how can
      I maybe check it...
    
Matteo