Panel Procedure "ERROR: Invalid Operation. ERROR: Termination due to Floating Point Exception"

[applemonster]

I use proc panel to run a simple panel data analysis. Here below is the most relevant code:

proc panel data=rrd_come.citydata_4;

id City TimeID;
model LoanNum = NewConfirmed NewSuspected / ranone;

run;

and I got the following Errors (Error is the mother of success but obviously my success has too many mothers):

ERROR: Invalid Operation.
ERROR: Termination due to Floating Point Exception

I have searched google and find the following information:

https://support.sas.com/kb/46/318.html

But it is definitely not my case because my dataset is just a 68846*5 table.

Are there any geniuses can help me out?

Thanks in advance!