PHP version = 7.4
I had already tried to deactivate and activate the plugin, no change.
Re: switching theme, Oxygen Builder is not a theme – it disables the WordPress theme system: https://oxygenbuilder.com/faq/will-my-theme-work-with-oxygen/
If I turn Oxygen off the directory path is correct.
I’m also having this issue. If I revert to v1.5.9 it works OK, but all transactions fail if I update to v1.6.0 or above.
