the answer is in the error , you have not updated the sql library correctly
once you have installed the master db from the download section , you need to install all the world updates
auth and character updates are the same as TC 3.3.5a server but world updates are from *
*see link
note : the world updates for 4.3.4 branch are NOT in the core folder you must download from
*git clone https://github.com/TrinityCore/TrinityCore_4.3.4_DB_Alpha.git
and install the updates for the version you have
reference = http://collab.kpsn.org/display/tc/Installing+TDB+4.3.4
"also on a side note the merge bat file is ether broken or has no info on what directory it is required to be put in , manually insert the updates if need be "