As many of you might know, Relic released the last patch of Company of Heroes.
All mods should modify it's core files in order to be able to run at the new version. Eastern Front is not the exception; we are working to bring the patch to fix this.
If you already installed the patch 2.602 for CoH you won't be able to play the latest version of Eastern Front (aka 1.31) and you will need to wait until 1.40 is done.
Sorry for any inconvenience.
Regards,
Eastern Front Dev Team