As it was working before, maybe you got something corrupted on your system.
Did you tried to backup and try to reapply the firmware?
Ok I just reinstall everything it went ok. Then uploaded the file the following errors:
Welcome to pfSense 2.0.1-RELEASE ...
Creating symlinks......done.
Fatal error: Cannot create references to/from string offsets nor overloaded objects in /etc/inc/xmlparse.inc on line 69
Launching the init system... done.
Initializing...............
Fatal error: Cannot create references to/from string offsets nor overloaded objects in /etc/inc/xmlparse.inc on line 69
Starting CRON... done.
Fatal error: Cannot create references to/from string offsets nor overloaded objects in /etc/inc/xmlparse.inc on line 69
Bootup complete
grep: /var/log/dmesg.boot: No such file or directory
[: -gt: unexpected operator
rm: /tmp/config.cache: No such file or directory
Any idea?