Got an error popup "Unable to obtain lock for this request."

[bagrovYKT]

Console is clean. This error appears only in one article, and began after last update (4.6.6). There is no info about this error in "Common questions and support documentation".

[bagrovYKT]

I solved this issue temporary by disabling checking for lock for my one article in class-wp-ulike-cta-listener.php:78