During a new installation of PBXManger I encountered the following error
Failed to install uploaded module : asterisk::module_install failed : Undefined subroutine &asterisk::za1aef0918c called at (eval 32) line 42.
Once the error is recieved, a second try on installing MTE does complete. I have duplicated this 3 times on all new installs.
As a side note no telephone types show up in the provisioning sections, the drop down yields no types for selection.