Solved, after running on mode debug found the problem which was weird and solved on Github:
https://github.com/PrestaShop/PrestaShop/issues/14595#issuecomment-510884182
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Solucionado! el error lo causaba algo raro que encontré en modo debug y está resuelto en Github:
https://github.com/PrestaShop/PrestaShop/issues/14595#issuecomment-510884182