solved
Elementor wrote back:
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Thank you for contacting us.
This issue is due to WordFence.
We received an answer from WordFence and a solution to get rid of this false positive:
.”Putting the firewall into learning mode and then attempting the action that is blocked
That is what should fix it. The action should be whitelisted after you put the firewall in learning mode and perform the action (I usually perform whatever actions are blocked several times, logged in or out, depending on whatever is appropriate). Then you should be able to re-enable the firewall and the action won’t be blocked again.”
https://www.wordfence.com/help/firewall/learning-mode/”