Judging by your post, a complete re-installation of RTW and EB could solve the problem. Bear in mind that EB requires a 100% clean RTW1.5 build, unmodified by any other mods.

Follow [ul=https://forums.totalwar.org/vb/showthread.php?t=80270]this guide on how to install EB[/url].

Also, no support from the team if you use unofficial minimods, ask the creator for help.

This thread covers most of the technical problems you can get in EB and RTW.

XSamatan