I installed BO3 correctly and I am able to run it properly and play online. When i transfer any eboot then i cant even start the game. Is there any way to fix this?

Are you on DEX or CEX? It matters if you're on CEX and using a debug eboot...

Im on DEX 4.75.3 D-REX Rebug.

Maybe You must login or register to view this content.

The error I get is
(80029519)

1. Backup your save data. (Saves can be copy protected, so copy the ones that aren't to EXT HDD, the ones that are, copy them with Multiman* to the EXT HDD )
2. Create new user on PS3 ( Go with USER 1 )
3. Delete your old user
4. Create the new user with the same name as the one user you deleted (If you like the name or whatever)
5. Copy the saves throught XMB back from EXT HDD to PS3 and throught Multiman* the protected ones.
6. Go into recovery and apply REBUILT DATABASE
7. Log into PSN with your account, synch Trophies and download what didn't work before.

Maybe this...