PAM session fail for users with an expired account
sudo whoami
sudo: pam_open_session: System error
sudo: policy plugin failed session initialization
Check if the password for the account has expired
chage -l user
Last password change : May 07, 2018
Password expires : Aug 05, 2018
Password inactive : never
Account expires : never
Minimum number of days between password change : 1
Maximum number of days between password change : 90
Number of days of warning before password expires : 10
chage -m 0 -M 99999 -I -1 -E -1 user