Hello,
I use Stata 15.1 for survival analysis, using a Cox-model (stcox). My master dataset is the UCDP Peace Agreement Dataset V19.1, with three different merged replication datasets. I want to investigate the relationship between gender provisions in peace agreements and the duration of peace agreements.

While stsetting my data, I received the following picture: Array
How can I interpret the output?
What does the Probable Error mean?

Kind regards,
Theresa