I am not a professional poet. A few years a poem of mine was published and reviewed by the South Asian Ensemble journal. This journal no longer exists, I cannot find it online and neither in print. I wrote to the former editors, and did not hear back from them either. Neither could I locate the issue of the journal with my poem on Google on miscellaneous websites. As a result the published poem is lost.
When I try to submit to a new journal, it asks me if the poem was published elsewhere. How should I submit the poem for review again?