retrieve_conf encountered an error

Hello forum,
I am very new to Asterisk and just encountered my first error while doing a module update
Reload failed because retrieve_conf encountered an error: 255

PHP Fatal error: Cannot redeclare class ext_senddtmf in /var/www/html/admin/modules/dahdiconfig/modules/sangoma.module on line 0

I ran ctrl F search on vi /var/www/html/admin/modules/dahdiconfig/modules/sangoma.module
and could not find [color=#0000BF]ext_senddtmf[/color] declared anywhere ! I’m now confused.
Normally with c,cpp and other scripting languages this means the variable has been declared in
the scope once before. All i’ve had to do before is find the duplicate variable rename it or delete if
its a repeat of the same function and so on. This all happened after i was updating modules today
Has anyone experiance this or know what i should do?

[color=#FF0000]I’m using asterisk
OS centos 6.3[/color]

You are using freepbx, asterisk doesn’t have that modules or binaries. So you may check the freepbx forum or the IRC.