Unable to save an EL with Page Composer

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Hello everyone,

I was trying to save the translations in a custom message that we created with page composer and the following error occurred:

I tried to search in Oracle Support this error but I couldn't find anything.

We cannot save the changes as the page reloads every time that we see this error.

Does anyone know what this error is and how we can fix this?

Thank you,

Agapi

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