error message in cache.log

[fightingmasta]

Hi

I see a lot of these messages in the squid cache.log file:
kid1| BUG: Unexpected state while connecting to a cache_peer or origin server

I've tried to fix it by deleting the directory /var/squid/ssl_crtd/ and rebuild the directory (sudo -u squid /usr/local/libexec/squid/ssl_crtd -c -s /var/squid/ssl_crtd/), but no success.

Regards,
Stefan