The "Rap" voicebank is discontinued. However, if you want to make Bebo talk, please consider using the LMI03/Pam voicebank from ZipZap.
Yes, it's a different voice, but Bebo now uses an AAC device post-retirement. Pam's voice is a TTS used within most Chiikit tech (the other TTS being a masculine version of the Pam voice.)