Erro no phoca gallery

[Fenovaes]

Olá pessoal,
eu instalei a galeria de fotos phoco gallery e quando clico nas fotos para anpliá-las aparece a seguinte mensagem:

PHP Warning: include_once(E:\home\xxx\xxx\xxx\templates\tx_gravity\lib\ja.template.helper.php) [<a href='function.include-once'>function.include-once</a>]: failed to open stream: No such file or directory in E:\home\xxx\xxx\xxx\templates\tx_gravity\component.php on line 16

PHP Warning: include_once() [<a href='function.include'>function.include</a>]: Failed opening 'E:\home\xxx\xxx\xxx\templates\tx_gravity\lib\ja.template.helper.php' for inclusion (include_path='.;c:\php5\includes') in E:\home\xxx\xxx\xxx\templates\tx_gravity\component.php on line 16

PHP Fatal error: Class 'JATemplateHelper' not found in E:\home\xxx\xxx\xxx\templates\tx_gravity\component.php on line 17

Alguém faz ideia de com posso arrumar isso?

Obrigada!