I moved a Joomla 1.5 site to free hosting site. I got a security error.
I contacted the hosting company and they sent me to a link to fix it. I added “@” before these three lines in the Libraries >> Joomla >> Sessions folder sessions.php file.
// You find these first two around line 105
//set default sessios save handler
//disable transparent sid support
//This one is on around line 685
//sync the session maxlifetime