Dai-2-Ji Super Robot Taisen OG (BLJS10133)

Hmm, the log ends with two game messages:

·W {PPU[0x1000012] Thread (GameDataInstall) [0x00c3c4a8]} cellSysutil: cellMsgDialogOpen2(type=0x85, msgString=“??????????????
?????????????????????????
”, callback=*0xd3fef0, userData=*0xd01c7cb4, extParam=*0x0)
·W {PPU[0x1000012] Thread (GameDataInstall) [0x00c3c4a8]} cellSysutil: ??????????????
?????????????????????????

Google translate:
The game data is broken.
Please close the game and delete game data.

Did you place a disc game inside dev_hdd0? Move it out of there to your desktop or something and then do a boot -> boot game. Make sure that the directory structure is /BLJS10133/PS3_GAME/USRDIR with the file PS3_DISC.SFB right next to the folder PS3_GAME, not inside it.