Did you installed the alexander EB mod?
By alexander mod, you mean this one? https://forums.totalwar.org/vb/showthread.php?t=94861

Or by any chance you didn't installed/uninstalled the trivial script? =P
Well, I installed the trivial scrip with EB1.1 but i didn't even bother to do something with it =P

If so.
Go to EB folder and search for SP edu backup folder (something like that) and copy the EDU and paste it in the EB data folder
Err...whoops? I thought that i was forgetting something, hehe I did this and the phalanx mod started to work, been some time since i played EB with the phalanx mod and I forgot that I had to put the EDU into the EB data folder. Sorry for the trouble


By the way, do i need to install the alexander mod of the link i listed above? Because everything is working fine here now.

Sorry for the trouble again and thank you very much for the help.