Same problem here, Bebot is no more compatible with new php version,
try this workaroud, i donĀ“t know if solves the problem, but...:
Edit all .php files on bebot folders and replace "&$bebot" wtih "$bebot", and all the other "&$" must be replaced too...
PHP now refuses this kind of parameters. Developers must update all the php code that uses "!$"
"pass-by-reference" variables
Maustoth