Something went wrong during the update. I assume that not all files have been copied, so some files are missing in
/components/com_uddeim/
You can unpack the installation archive and copy the missing file
uddeimlib38.php
in the folder mentioned above.
Or you can uninstall uddeIM and reinstall it using the web installer or local installer.
uddeIM & uddePF Development
CB Language Workgroup
CB 3rd Party Developer