Confirmed; Bremm's advice works. Now the application is stable and it works. There is a typo in second command, this one is correct: sudo apt-get update && sudo apt-get install subtitleeditor
Confirmed; Bremm's advice works. Now the application is stable and it works. There is a typo in second command, this one is correct:
sudo apt-get update && sudo apt-get install subtitleeditor