In general if there was a fault error the display would show a fault code which is described in the manual.
The issue may be that source for the analogue control got scrambles. Check the changes below, not sure but also may require external 2 wire run command control. Alternative is to reset the VFD, and try control from the front panel and then edit the parameters.
P00.01 set to 1,
P07.08 set to 3