["Could not apply command" Message]

Hello,
I have the same message with the last build 348.
 

[Boot Error with Unilogic 1.33 Build 348 - [Code 7]]

Hello,
We have a curious problem after updating to Unilogic 1.33.348. After sending to program to the PLC, the PLC is booting but shows the message below : 
BOOT ERROR
PLC (CPU) did not boot successfully [Code 7]

We firt thought that it was a hardware problem so we tried on another PLC and we have the same issue.
Also, unilogic shows the following message "Could not apply command" after the program is downloaded into the CPU.

Thanking you in advance for your reply.