Prusa-Link completely blocked

[mobil750]

Hello,
by accident I uploaded a STL file instead of the corresponding Gcode file.
Automatic printing was enabled after upload.
Prusa-Link changed to state printing and raised the error about the wrong file type.
But I cannot delete the STL file and Prusa-Link is completely blocked.
There is no way to stop, restart or shutdown Prusa-Link ... or to get rid of the wrong file.

What can I do to release that blocking?

Thanks

[mobil750]

The only way to get Prusa-Link back to work is a hard power off!
That's not a save way and I hope there will come the control option to Restart and Shutdown the Prusa-Link server ...