Worked a few days ago, now I get "PCM Frequency out of range"

[Hexalyse]

I used wsprPi a few days ago. Worked fine.

Today I get this error and nothing get transmitted :

Requested TX frequencies:
  14.095700 MHz
Extra options:
  NTP will be used to periodically calibrate the transmission frequency

Ready to transmit (setup complete)...
Desired center frequency for WSPR transmission: 14.095700 MHz
  Waiting for next WSPR transmission window...
  Obtained new ppm value: -4.59688
  TX started at: UTC 2018-04-13 00:38:01.001
Channel 14 CBSize 2000 UsermemSize 1000
Using mbox device /dev/vcio.
68000 Size NUM PAGES 17 PAGE_SIZE 4096
BufferSize 1000 , cb 2000 user 1000
Info:NTP find ppm=-4.596878
Info:NTP find ppm=-4.596878
Info:NTP find ppm=-4.596878
Freq = 1000000012
 multiplier:48.453969 divider:66 VCO: 930.3MHz
Master PLLA Locked
Clk Number 4 div 66 frac 0
Freq = 1000000012
PCM clk=6849 / 1290
PCM Frequency out of range

Same with PiFmRds, nothing is transmitted, but I can measure a 0,9V voltage on the GPIO4 pin with a multimeter when trying to transmit, so I guess it outputs something but the frequency is bad ?