Upgraded from 5.0 to 7.5 on our CS1000

now getting this error.

PRI245 DCH: 20 DATA: 0 4

PRI0245
Database Error: Missing PNI number in the customer data block. Output
data: DCH: x DATA: y z . Where:
x = D-channel number y = Customer number
z = Service ID
Look into the customer data block to configure the PNI.
Severity: Critical

Any Idea what this is? We are getting a lot of them.

PNI=0 in CDB

This is a point to point that goes to a remote option 11. That 11 has rebooted at 3:45 AM the last two Thursdays. Do not know why. Related?