Failed to map peripheral at 0x20007000: Operation not permitted

[WeeJeWel]

Using a Compute Module 4, I get this error:

sudo ./pi-blaster --foreground
MBox Board Revision: 0xb03141
DMA Channels Info: 0x37f5, using DMA Channel: 14
Using hardware:                   PWM
Number of channels:                 3
PWM frequency:                 100 Hz
PWM steps:                       1000
Maximum period (100  %):      10000us
Minimum period (0.100%):         10us
DMA Base:                  0x20007000
pi-blaster: Failed to map peripheral at 0x20007000: Operation not permitted
pi-blaster stopped.