atts

Hello . Could someone give me some advice? I bought a second-hand sony mds ja555es minidisk that was supposed to be fully functional.
When I insert the disc, it does not load and ejects it, and the display says: fault c13. the disk does not spin.
can't you tell what could be wrong? The end switch works, the laser bridge returns to its original position after turning on the device, but I don't know if the disk should spin after being inserted or not, and is the laser unit bad?
thanks for the answers.