2.1.5 no Dashboard

[Dragyn]

Hi,

The dashboard we fine after upgrading but today it has gone away,  when trying to load I get a http 500 error.  I can access all other webgui pages.  I tried a reboot and no change, however there are what looks like 3 relevent system log messages after a successful login:

Sep 7 16:48:42 lighttpd[37052]: (mod_fastcgi.c.2562) unexpected end-of-file (perhaps the fastcgi process died): pid: 37831 socket: unix:/tmp/php-fastcgi.socket-1
Sep 7 16:48:42 kernel: pid 8648 (php), uid 0: exited on signal 11 (core dumped)
Sep 7 16:48:42 lighttpd[37052]: (mod_fastcgi.c.3346) response not received, request sent: 957 on socket: unix:/tmp/php-fastcgi.socket-1 for /index.php?, closing connection

Not sure how to fix this and get the dashboard back.