Thanks ! If someone in a big exchange wants to hire me, he can feel free to ask me for an interview

About your issue, it's very strange because this error happen when the line 299 of rpcrawtransaction.cpp is:

const CScriptID& hash = boost::get<const CScriptID&>(address);

instand of :

const CScriptID& hash = boost::get(address);

but you should aldready have this patch if you are up-to-date.
Maybe you can recheck you have this modification and do this :

make clean
./autogen.sh
./configure
sudo make install

If it stil not working you can restart from scratch and reclone the project from https://github.com/lomtax/digitalcoin.git
Just to know, what version of linux are you using ?

I've also integrated all the work from Baritus into this repo, special thanks to you Baritus, good work !