Bulk optimization fails in Nextgen Gallery but manual optimization works

Having an odd situation on a personal site hosted on hostgator. In a NextGen Gallery the manual optimization of an image works, but bulk optimization fails with the error below. I tried enabling debug logging, but didn’t see any additional errors appearing during optimize.

I did a search but didn’t see anything obviously applicable. Any suggestions?

It’s not a blocker since I can manually optimize, but should make life simpler if bulk worked.

Error:———————

Warning: require_once(<PATH HIDDEN>/public_html/wp-content/plugins/nextgen-gallery/lib/meta.php) [function.require-once]: failed to open stream: No such file or directory in <PATH HIDDEN>/public_html/wp-content/plugins/ewww-image-optimizer/nextgen-integration.php on line 379

Fatal error: require_once() [function.require]: Failed opening required ‘<PATH HIDDEN>/public_html/wp-content/plugins/nextgen-gallery/lib/meta.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in <PATH HIDDEN>/public_html/wp-content/plugins/ewww-image-optimizer/nextgen-integration.php on line 379

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EWWW Status:
Plugin Status

If updated versions are available below, you may need to enable write permission on the wp-content/ewww folder to use the automatic installs.
*Updates are optional, but may contain increased optimization or security patches
jpegtran: OK?version: Independent JPEG Group’s JPEGTRAN, version 9 13-Jan-2013
optipng: OK?version: OptiPNG version 0.7.4
gifsicle: OK?version: LCDF Gifsicle 1.70
Graphics libraries – only need one, used for conversion, not optimization: GD: OK?? Imagemagick ‘convert’: OK
safe mode: Off??exec(): OK??
Only need one of these: finfo: MISSING??getimagesize(): OK??mime_content_type(): OK

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https://www.ads-software.com/plugins/ewww-image-optimizer/