phpbb2 to SMF 1.1.10 blank page

[Yabco]

After configuration my conversion frezes on blankpage. Before i've tried converting my db online i've tried it localy and it worked fine. Yes i know that i can import that localy converted db to my site but if i do that my shoutbox just stops working corectly. :/

SMF version 1.1.10

[ThorstenE]

white / blank pages are often server based issues.. I believe the reason is related to "max_execution_time" or "memory_limit" from php.ini