Internal Error

Exception:
	[1] Sorry, couldn't create a new CathDB object cathdb_v3_4_0 on godzilla
Sorry, we were unable to automatically email the CATH tech team of this error. If this problem persists, please contact us on the email address below
Exception:
	[0] At /usr/local/svn/v5.0/lib/CathUtils.pm (252) in CathUtils::mail('cathweb@biochem.ucl.ac.uk', 'External CGI Exception (127.0.0.1)', '
Exception:\x{a}\x{9}[1] Sorry, couldn't create...', 'HASH(0x195401d8)'):
		Sat Aug  1 06:45:17 2015 : "sendmail" does not appear to be running on "caffdubya".  Please contact IT support to resolve this problem.
	[1] At /usr/local/svn/v5.0/lib/CathCGI.pm (766) in CathCGI::abort('CathCGI::Update=HASH(0x19a9a718)', 'Exception=HASH(0x174cd360)'):
	[2] At /usr/local/svn/v5.0/lib/CathCGI.pm (600) in CathCGI::_init('CathCGI::Update=HASH(0x19a9a718)', 'HASH(0x19a9a6d0)'):
	[3] At /usr/local/svn/v5.0/lib/CathCGI/Update.pm (155) in CathCGI::Update::_init('CathCGI::Update=HASH(0x19a9a718)', 'HASH(0x19a9a6d0)'):
	[4] At /usr/local/svn/v5.0/lib/CathCGI/Update.pm (137) in CathCGI::Update::new('CathCGI::Update', 'HASH(0x19a9a6d0)'):
	[5] At /usr/local/svn/v5.0/cgi/Chain.pl (26) in Perl: