Please attach your output style, which I suspect is missing a critical <space> before the et al in the box (,<space> et al or just <space>et al. – as preferred in the Author Separators section of the Bibliography section of the output style.
Please attach your output style, which I suspect is missing a critical <space> before the et al in the box (,<space> et al or just <space>et al. – as preferred in the Author Separators section of the Bibliography section of the output style.