I have a problem all the safety cards are flashing red
with such a fault message

Hi,

I recommend you to check:

1- The diagnostic buffer

2- Check the DB associated to the security module (online connection).

3- Check if you have programmed a depassivation:

Safety: Passivation and Reintegration of F-I/O

4- Are there errors in the SENDDP and RCVDP blocks? Attach screenshots