After I updated my plugin, there were two lines of warning appeared. Please see below. It happed several times. Could anyone help me to have a solution. Many thanks.
Warning: Unknown: open(/var/chroot/home/content/61/7564861/tmp/sess_kr1aohv2p5mqn8rksdkv3vh7e6, 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