Warning: Illegal string offset 'imgurl'

I am receiving this error "Warning: Illegal string offset 'imgurl' in /home/ricmei1/dynamicperformanceauto.com/wp-content/themes/spacing/footer.php on line 87" in my theme. This theme/template is used by several businesses with the same plugins but not all of them are getting this error (scandinavianservice.com). I can't seem to figure out why. Can someone help me? Thank you!