Roll back your PHP version.
Not an option, I only own a Shell account

Please try the following code and see if that fixes your problem
https://github.com/J-Soft/BeBot-legacy/archive/master.zip
It hasn't my friend.
[email protected] [~/public_html/aoc/botzerk/BeBot]# php StartBot.php
[email protected] [~/public_html/aoc/botzerk/BeBot]#
(Basically he just changes lines. PS: changed the "user" for safety reasons)
EDIT:
The Error_Log is telling this,
[11-Apr-2013 10:57:20 Europe/Paris] PHP Warning: PHP Startup: Unable to load dynamic library '/usr/local/lib/php/extensions/no-debug-non-zts-20100525/suhosin.so' - /usr/local/lib/php/extensions/no-debug-non-zts-20100525/suhosin.so: cannot open shared object file: No such file or directory in Unknown on line 0
[11-Apr-2013 10:57:20 Europe/Paris] PHP Warning: PHP Startup: Unable to load dynamic library '/usr/local/lib/php/extensions/no-debug-non-zts-20100525/sqlite.so' - /usr/local/lib/php/extensions/no-debug-non-zts-20100525/sqlite.so: cannot open shared object file: No such file or directory in Unknown on line 0
[11-Apr-2013 10:57:20 Europe/Paris] PHP Fatal error: Directive 'register_globals' is no longer available in PHP in Unknown on line 0