Upgrade to IPB 4 and error of session_start

[Vendeira]

Hello,

 

I try to update to the IPB4 and I follow all the steps until the confirmation but then after 30 minutes I try to click on button to confirm and now give me this error:

 

session_start(): open(/var/lib/php/session/sess_i2cdgr7bdp9bk9v5cor219a7q6, O_RDWR) failed: Permission denied (13)

 

How can I create a new session_start?

 

Thank you

[Vendeira]

Problem resolved.