Upgrade to V2.8 from 2.7

Hi,

yesterday i upgraded to Freepbx V2.8 via the online tool and all the modules.
Also I updated from Asterisk 1.6.2.8 to .10

Now I cannot call inside anymore or call outside and get this error messages in asterisk log.

[Aug 5 17:44:18] WARNING[9473] config.c: parse error: No category context for line 48 of /etc/asterisk/extensions.conf

[Aug 5 17:45:04] NOTICE[9514] chan_capi.c: ISDN1#04: did not find exten for ‘3697090’, ignoring call.
[Aug 5 17:45:08] NOTICE[9514] chan_capi.c: ISDN1#04: did not find exten for ‘3697090’, ignoring call.

Looks like he dont read extensions.conf correctly anymore.

What can i do?