System error

error:  could not exec search indian : Index file(s) is empty at /usr/local/lii/lib/SwishQuery.pm line 154.
context: 
... 
150:  }
151: 
152:  sub reportError{
153:  my($self,$swh, $apperr) = @_;
154:  die $apperr . ' : ' . $swh -> ErrorString();
155:  }
156: 
157:  # corrects misspelled terms in query
158: 
... 
code stack:  /usr/local/lii/lib/SwishQuery.pm:154
/usr/local/lii/lib/SwishQuery.pm:80
/var/www/html/supct/search/autohandler:138
raw error






























could not exec search indian : Index file(s) is empty at /usr/local/lii/lib/SwishQuery.pm line 154.


Trace begun at /usr/lib/perl5/site_perl/5.8.5/HTML/Mason/Exceptions.pm line 129
HTML::Mason::Exceptions::rethrow_exception('could not exec search indian : Index file(s) is empty at /usr/local/lii/lib/SwishQuery.pm line 154.^J') called at /usr/local/lii/lib/SwishQuery.pm line 154
SwishQuery::reportError('SwishQuery=HASH(0x552c83ba20)', 'SWISH::API=SCALAR(0x552c83b9e0)', 'could not exec search indian') called at /usr/local/lii/lib/SwishQuery.pm line 80
SwishQuery::query('SwishQuery=HASH(0x552c83ba20)', 'indian') called at /var/www/html/supct/search/autohandler line 138
HTML::Mason::Commands::__ANON__('query', 'indian', 'scope', 'onlyHistoric') called at /usr/lib/perl5/site_perl/5.8.5/HTML/Mason/Component.pm line 135
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x552c90f520)', 'query', 'indian', 'scope', 'onlyHistoric') called at /usr/lib/perl5/site_perl/5.8.5/HTML/Mason/Request.pm line 1257
eval {...} at /usr/lib/perl5/site_perl/5.8.5/HTML/Mason/Request.pm line 1252
HTML::Mason::Request::comp(undef, undef, undef, 'query', 'indian', 'scope', 'onlyHistoric') called at /usr/lib/perl5/site_perl/5.8.5/HTML/Mason/Request.pm line 466
eval {...} at /usr/lib/perl5/site_perl/5.8.5/HTML/Mason/Request.pm line 466
eval {...} at /usr/lib/perl5/site_perl/5.8.5/HTML/Mason/Request.pm line 418
HTML::Mason::Request::exec('HTML::Mason::Request::ApacheHandler=HASH(0x552c83c930)') called at /usr/lib/perl5/site_perl/5.8.5/HTML/Mason/ApacheHandler.pm line 168
HTML::Mason::Request::ApacheHandler::exec('HTML::Mason::Request::ApacheHandler=HASH(0x552c83c930)') called at /usr/lib/perl5/site_perl/5.8.5/HTML/Mason/ApacheHandler.pm line 826
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x552c738550)', 'Apache2::RequestRec=SCALAR(0x552c835560)') called at (eval 29) line 8
HTML::Mason::ApacheHandler::handler('HTML::Mason::ApacheHandler', 'Apache2::RequestRec=SCALAR(0x552c835560)') called at -e line 0
eval {...} at -e line 0