Undefine indexes in sessions after 2.1.3 upgrade

[eluser]ogomez[/eluser]
[quote author="CroNiX" date="1354669135"]Yes, as pointed out, the new session table must match the version of CI you are using. The schema changed. So if you only updated the code and not the session tables schema you need to. Check the userguide that LuckyFella73 posted and compare the session schema to what you are using...[/quote]

I updated the table and I'm still having the same issue.