Warning: Unknown: open(/var/chroot/home/content/72/2727272/tmp/sess_j7h50c93spkcjt2mmlehioqbh3, O_RDWR) failed: No such file or directory (2) in Unknown on line 0
Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct () in Unknown on line 0
This message appeared after I deactivated a pricing table plugin called "Pricing Tables".
Whenever I reactivate that plugin this warning messages disappear.