op-1 issue (appear this on the screen) "......can't open/yaffs2/content/tape.db"

Hello! I received my used op-1 today, it worked fine…before I tried to connect it to the PC with a non-original cable, and now this screen is out! I’m afraid I threw 700 euros so … what can I do? please help me, thank you!


Could it be dead?
Or are you actually able to use the Op-1 & hear sound, yet nothing is on the screen?