Error !

TypeError: cannot concatenate 'str' and 'Acquisition.ImplicitAcquisitionWrapper' objects

<% meta_descr = object.seoDescription() or object.val('abstract') or object.val('teaser') or object.val('body') meta_descr = site.snip_text( site.stripHtml( meta_descr ) , 160 ).strip().replace('\n',' ').replace(' ',' ') if len(meta_descr) > 200: meta_descr = '' meta_image = object.val('listimage.file') or object.val('mainimage.file')
/usr/lib64/python2.6/sgmllib.py, line 103:
self.rawdata = self.rawdata + data
/var/limecms/imr/imr01/imr-inst/Products/LimeAPI/LimeStripHtml.py, line 41:
parser.feed(s)
templates/default/site, line 52:
<%
/var/limecms/imr/imr01/lib/python2.6/site-packages/Mako-1.0.1-py2.6.egg/mako/runtime.py, line 860:
callable_(context, *args, **kwargs)
/var/limecms/imr/imr01/lib/python2.6/site-packages/Mako-1.0.1-py2.6.egg/mako/runtime.py, line 835:
_exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
/var/limecms/imr/imr01/lib/python2.6/site-packages/Mako-1.0.1-py2.6.egg/mako/runtime.py, line 803:
**_kwargs_for_callable(callable_, data))
/var/limecms/imr/imr01/lib/python2.6/site-packages/Mako-1.0.1-py2.6.egg/mako/template.py, line 443:
return runtime._render(self, self.callable_, args, data)
/var/limecms/imr/imr01/imr-inst/Products/LimeTemplate/LimeTemplate.py, line 702:
html = mytemplate.render(object=object, site=site, request=self.REQUEST, extra=extra.get('kwargs', None), **extra)