I have already tried uninstalling and reinstalling the game and aeria ignite. Also this is after the server maintenance was completed. Here is the error text that keeps popping up.
\data\db\C_Activity.ini CRC checksum error (-135483666 !=1735679087)
Send .\new_gamedata\data\db\C_Activity.ini.bz2 by e-mail to bug@
Go here http://www.aeriagames.com/forums/en/viewtopic.php?t=1647683
use the Full Client, Cumulative, and Apr, 15 files to do a FULL manual patch and it will fix this error.
It did with me anyway and yes do it in order the files are numbered just extract to the grandfantasia folder and click yes to replacing anything it says is already there.