PHP preg_replace() Login

[ddoc9942]

There were many installation problems. Failed to create the directories. I had to create one by one.

When starting for the first time (url / obiz / index.php / user / login) it accused the following error:

Warning: session_start (): Failed to read session data: user (path: / tmp) in path / obiz / openbiz / bin / SessionContext.php on line 79

Warning: preg_replace (): The / e modifier is no longer supported, use preg_replace_callback instead in path / obiz / openbiz / others / Smarty / libs / Smarty_Compiler.class.php on line 270

How to solve?

[ddoc9942]

now only Warning: session_start(): Failed to read session data: user (path: /tmp) in path/obiz/openbiz/bin/SessionContext.php on line 79

Folder /home/user/tmp already exist and permission 0755