Blank page on frontend

No, no
i did not mean Joomla tables, for them innoDB is required and is independent of FC

I mean table starting with
__flexicontent_tttt
it maybe that we forgot to declare the MyIsam engine somewhere
we use fulltext feature of MyIsam Storage

Flexicontent tables are MyISAM type.

1. MAKE sure your server is loading multi-byte support
extension=php_mbstring.dll

2.
Please edit
components/com_flexicontent/flexicontent.php and at the top of it add top (just after ):

defined( '_JEXEC' ) or die( 'Restricted access' );

Add these to lines:
error_reporting(E_ALL & ~E_STRICT);
ini_set('display_errors',1);

and refresh your frontend , and you should get some error message printed

Thanks a lot for your help ggppdk ! Actually, there was a problem on mbstring configuration. Don't know how to express my gratitude

vote on jed and do a donation !

That is vote on JED when they approve the listing, it seems they have too much backlog of updated extensions right now,

and we are still waiting for them to approve new version that is compatible with J2.5 and enable the FLEXIcontent JED entry