Fotomoto not work on Wordpress and Gallery3


I have Fotomoto installed on my site since 2016. After upgrading to Wordpress 5, Fotomoto stops sync photos from my site. I have tried:

1) Uninstall and re-install fotomoto plugin
2) Stop Jackpack and other plugins
3) Remove site (yes, remove all previous orders) and startup a new account with new site key.
4) Create another fotomoto account with new site key
5) Create a Gallery3 with Fotomoto plugin (for testing)

1-5 don't fix the problem

Please help.

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