Fatal error: Using $this when not in object...

Hello,

fixed this: Fatal error: Using $this when not in object context in /var/www/vhosts/pyrocms23/public/system/cms/src/Pyro/Cache/CacheCollection.php on line 59 Call Stack: 0.0000 646848 1.

it appears during installation of 2.3. 
It is probably problem of closuers and php 5.3.

Also somehow I was not able to access the $me->items, so replaced with $me->all().

Install now went good.

but getting on frontpage:
ErrorException [ Notice ]: Undefined property: CI::$module_details

FCPATH/system/cms/libraries/MX/Controller.php [ 58 ]