I started experiencing this problem on an all-in-one PC running TouchPC. So it's not limited to the C15. In my case, while playing some (or any-not sure) tracks from Tidal TouchPC will start a cycle of closing and rebooting. It doesn't affect the playback. The only way to stop it is to reboot the core, which in my case is an MD600.

MD600(2x2TB); iPad Pro
LR. 818v3, 8000SE
HT. 861v8+ID41,HD621; BW 2x802D,HTM1D,4x804S;SVS sub; Mac 5 MC501s; RGP 600Pro, JVC X950; Radiance Pro; Oppo 203
FR. G65, DSP3200-3300 DSW, HD621; Mac MC152; Oppo 103, PDP TCP65VT60, Radiance 2124; RGP1200C
4. G65, DSP3200-3300,HD621; OPPO 83, Radiance XE PDP
5. 818v3; Prime HP Amp; HD800