AMP Plugin does not work with Ocean Extra

I use OceanWP (free) and Ocean Extra plugin together.

I recently setup the AMP plugin (https://wordpress.org/support/plugin/amp/). But at the end of setup wizard I get the error: “The setup wizard has experienced an error.”

Then I return to AMP Settings page, but this time I got an error which apperars at the right bottom of the screen, which says: “Error: An error occurred. You might be offline or logged out.”

I disabled all the plugins one by one and the error is lost when I disable the plugin “Ocean Extra”

Is there a known conflct with AMP plugin? I want to use both “Ocean Extra” and AMP plugin together.

If you need any other log, versions, site heath info, etc. I can share with you in a secure way…

Thanks.