I am getting this same error, but on only one of my multiple WP sites, though they all have SG Optimizer installed.
The sites are all set up for automatic updates, and SG Optimizer is on version 5.7.10. It informs me this is the latest version.
For now, I disabled SG Optimizer completely and the error is gone. Is there a future version in which this is fixed, or should it be fixed in 5.7.10?
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This reply was modified 5 years, 6 months ago by hhighfield.
