Installation issue

I get this error when I install the plugin:

Warning: session_start(): open(/tmp/sess_00fc1cf79ba4e01a0b556896d0043095, O_RDWR) failed: Permission denied (13) in /home/sumlifadmin/public_html/wp-content/plugins/give/includes/class-give-session.php on line 284

Warning: session_start(): Cannot send session cache limiter – headers already sent (output started at /home/sumlifadmin/public_html/wp-content/plugins/give/includes/class-give-session.php:284) in /home/sumlifadmin/public_html/wp-content/plugins/give/includes/class-give-session.php on line 284

Warning: Cannot modify header information – headers already sent by (output started at /home/sumlifadmin/public_html/wp-content/plugins/give/includes/class-give-session.php:284) in /home/sumlifadmin/public_html/wp-content/plugins/give/includes/class-give-session.php on line 285

Warning: Cannot modify header information – headers already sent by (output started at /home/sumlifadmin/public_html/wp-content/plugins/give/includes/class-give-session.php:284) in /home/sumlifadmin/public_html/wp-content/plugins/give/includes/class-give-session.php on line 286

Warning: Cannot modify header information – headers already sent by (output started at /home/sumlifadmin/public_html/wp-content/plugins/give/includes/class-give-session.php:284) in /home/sumlifadmin/public_html/wp-includes/pluggable.php on line 1228

Warning: Unknown: open(/tmp/sess_00fc1cf79ba4e01a0b556896d0043095, O_RDWR) failed: Permission denied (13) 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 (/tmp) in Unknown on line 0

https://ww.wp.xz.cn/plugins/give/