System error

error:  Error during compilation of /srv/jbovlaste/current/export/latex-export.html:
Unescaped left brace in regex is illegal here in regex; marked by <-- HERE in m/(?<!\\textbackslash{ <-- HERE )([}])/ at /srv/jbovlaste/current/lib/JbovlasteLaTeX.pm line 32.

Stack:
[/srv/jbovlaste/current/lib/JbovlasteLaTeX.pm:32]
[/srv/jbovlaste/current/lib/JbovlasteLaTeX.pm:32]
[/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:817]
[/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:440]
[/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:250]
[/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:212]
[/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:97]
[/usr/share/perl5/vendor_perl/Class/Container.pm:275]
[/usr/share/perl5/vendor_perl/Class/Container.pm:353]
[/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:348]
[/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:868]
[/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:822]
[(eval 29):8]
[/srv/jbovlaste/current/lib/JbovlasteLaTeX.pm:32]
Compilation failed in require at /srv/jbovlaste/current/export/latex-export.html line 63.

Stack:
[/srv/jbovlaste/current/export/latex-export.html:63]
[/srv/jbovlaste/current/export/latex-export.html:63]
[/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:817]
[/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:440]
[/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:250]
[/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:212]
[/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:97]
[/usr/share/perl5/vendor_perl/Class/Container.pm:275]
[/usr/share/perl5/vendor_perl/Class/Container.pm:353]
[/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:348]
[/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:868]
[/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:822]
[(eval 29):8]
[/srv/jbovlaste/current/export/latex-export.html:63]
BEGIN failed--compilation aborted at /srv/jbovlaste/current/export/latex-export.html line 63.

Stack:
[/srv/jbovlaste/current/export/latex-export.html:63]
[/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:817]
[/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:440]
[/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:250]
[/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:212]
[/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:97]
[/usr/share/perl5/vendor_perl/Class/Container.pm:275]
[/usr/share/perl5/vendor_perl/Class/Container.pm:353]
[/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:348]
[/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:868]
[/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:822]
[(eval 29):8]
[/srv/jbovlaste/current/export/latex-export.html:63]

context: 
... 
28:  $filename;
29:  }
30: 
31:  sub write_file {
32:  my ($filename, $content) = @_;
33:  open(TMP, '>:utf8', $filename) or die "couldn't open a temporary file.\n";
34:  print TMP $content;
35:  close(TMP);
36:  }
... 
59:  <%init>
60:  our($dbh);
61:  use File::Temp qw{ tempfile tempdir };
62:  use POSIX;
63:  use JbovlasteLaTeX qw { generate_latex };
64:  </%init>
65: 
66:  <%args>
67:  $lang => undef
... 
code stack:  /usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:450
/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:250
/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:212
/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:97
/usr/share/perl5/vendor_perl/Class/Container.pm:275
/usr/share/perl5/vendor_perl/Class/Container.pm:353
/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:348
/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:868
/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:822
(eval 29):8
-e:0
raw error






























Error during compilation of /srv/jbovlaste/current/export/latex-export.html:
Unescaped left brace in regex is illegal here in regex; marked by <-- HERE in m/(?<!\\textbackslash{ <-- HERE )([}])/ at /srv/jbovlaste/current/lib/JbovlasteLaTeX.pm line 32.

Stack:
  [/srv/jbovlaste/current/lib/JbovlasteLaTeX.pm:32]
  [/srv/jbovlaste/current/lib/JbovlasteLaTeX.pm:32]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:817]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:440]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:250]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:212]
  [/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:97]
  [/usr/share/perl5/vendor_perl/Class/Container.pm:275]
  [/usr/share/perl5/vendor_perl/Class/Container.pm:353]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:348]
  [/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:868]
  [/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:822]
  [(eval 29):8]
  [/srv/jbovlaste/current/lib/JbovlasteLaTeX.pm:32]
Compilation failed in require at /srv/jbovlaste/current/export/latex-export.html line 63.

Stack:
  [/srv/jbovlaste/current/export/latex-export.html:63]
  [/srv/jbovlaste/current/export/latex-export.html:63]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:817]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:440]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:250]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:212]
  [/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:97]
  [/usr/share/perl5/vendor_perl/Class/Container.pm:275]
  [/usr/share/perl5/vendor_perl/Class/Container.pm:353]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:348]
  [/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:868]
  [/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:822]
  [(eval 29):8]
  [/srv/jbovlaste/current/export/latex-export.html:63]
BEGIN failed--compilation aborted at /srv/jbovlaste/current/export/latex-export.html line 63.

Stack:
  [/srv/jbovlaste/current/export/latex-export.html:63]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:817]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:440]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:250]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Request.pm:212]
  [/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:97]
  [/usr/share/perl5/vendor_perl/Class/Container.pm:275]
  [/usr/share/perl5/vendor_perl/Class/Container.pm:353]
  [/usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm:348]
  [/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:868]
  [/usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm:822]
  [(eval 29):8]
  [/srv/jbovlaste/current/export/latex-export.html:63]



Trace begun at /usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm line 851
HTML::Mason::Interp::_compilation_error('HTML::Mason::Interp=HASH(0x7effb41b65e0)', '/srv/jbovlaste/current/export/latex-export.html', 'HTML::Mason::Exception::Compilation=HASH(0x7effb4f385a8)') called at /usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm line 450
HTML::Mason::Interp::load('HTML::Mason::Interp=HASH(0x7effb41b65e0)', '/export/latex-export.html') called at /usr/share/perl5/vendor_perl/HTML/Mason/Request.pm line 250
eval {...} at /usr/share/perl5/vendor_perl/HTML/Mason/Request.pm line 232
HTML::Mason::Request::_initialize('HTML::Mason::Request::ApacheHandler=HASH(0x7effa4162cb0)') called at /usr/share/perl5/vendor_perl/HTML/Mason/Request.pm line 212
HTML::Mason::Request::new('HTML::Mason::Request::ApacheHandler', 'error_format', 'html', 'error_mode', 'output', 'interp', 'HTML::Mason::Interp=HASH(0x7effb41b65e0)', 'comp', '/export/latex-export.html', 'args', 'ARRAY(0x7effa41e1050)', 'ah', 'HTML::Mason::ApacheHandler=HASH(0x7effb41b2818)', 'apache_req', 'Apache2::RequestRec=SCALAR(0x7effa419bd90)', 'container', 'HASH(0x7effa41d39b8)') called at /usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm line 97
HTML::Mason::Request::ApacheHandler::new('HTML::Mason::Request::ApacheHandler', 'error_format', 'html', 'error_mode', 'output', 'interp', 'HTML::Mason::Interp=HASH(0x7effb41b65e0)', 'comp', '/export/latex-export.html', 'args', 'ARRAY(0x7effa41e1050)', 'ah', 'HTML::Mason::ApacheHandler=HASH(0x7effb41b2818)', 'apache_req', 'Apache2::RequestRec=SCALAR(0x7effa419bd90)', 'container', 'HASH(0x7effa41d39b8)') called at /usr/share/perl5/vendor_perl/Class/Container.pm line 275
Class::Container::call_method('HTML::Mason::Interp=HASH(0x7effb41b65e0)', 'request', 'new', 'interp', 'HTML::Mason::Interp=HASH(0x7effb41b65e0)', 'comp', '/export/latex-export.html', 'args', 'ARRAY(0x7effa41e1050)', 'ah', 'HTML::Mason::ApacheHandler=HASH(0x7effb41b2818)', 'apache_req', 'Apache2::RequestRec=SCALAR(0x7effa419bd90)', 'container', 'HASH(0x7effa41d39b8)') called at /usr/share/perl5/vendor_perl/Class/Container.pm line 353
Class::Container::create_delayed_object(undef, undef, 'interp', 'HTML::Mason::Interp=HASH(0x7effb41b65e0)', 'comp', '/export/latex-export.html', 'args', 'ARRAY(0x7effa41e1050)', 'ah', 'HTML::Mason::ApacheHandler=HASH(0x7effb41b2818)', 'apache_req', 'Apache2::RequestRec=SCALAR(0x7effa419bd90)', 'container', 'HASH(0x7effa41d39b8)') called at /usr/share/perl5/vendor_perl/HTML/Mason/Interp.pm line 348
HTML::Mason::Interp::make_request('HTML::Mason::Interp=HASH(0x7effb41b65e0)', 'comp', '/export/latex-export.html', 'args', 'ARRAY(0x7effa41e1050)', 'ah', 'HTML::Mason::ApacheHandler=HASH(0x7effb41b2818)', 'apache_req', 'Apache2::RequestRec=SCALAR(0x7effa419bd90)') called at /usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm line 868
eval {...} at /usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm line 867
HTML::Mason::ApacheHandler::prepare_request('HTML::Mason::ApacheHandler=HASH(0x7effb41b2818)', 'Apache2::RequestRec=SCALAR(0x7effa419bd90)') called at /usr/share/perl5/vendor_perl/HTML/Mason/ApacheHandler.pm line 822
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x7effb41b2818)', 'Apache2::RequestRec=SCALAR(0x7effa419bd90)') called at (eval 29) line 8
HTML::Mason::ApacheHandler::handler('HTML::Mason::ApacheHandler', 'Apache2::RequestRec=SCALAR(0x7effa419bd90)') called at -e line 0
eval {...} at -e line 0