jQuery Error

When I am trying to import a file, it gets to 100% and then stops with the following errors;

Failed to load resource: the server responded with a status of 404 ()
/wp-admin/admin-ajax.php?action=ai1wm_import:1

Uncaught Error: error
at Object.error (import.min.js?v=7.29&ver=5.5.1:1592)
at i (load-scripts.php?c=0&load[chunk_0]=jquery-core,utils&ver=5.5.1:2)
at Object.fireWith [as rejectWith] (load-scripts.php?c=0&load[chunk_0]=jquery-core,utils&ver=5.5.1:2)
at x (load-scripts.php?c=0&load[chunk_0]=jquery-core,utils&ver=5.5.1:4)
at XMLHttpRequest.c (load-scripts.php?c=0&load[chunk_0]=jquery-core,utils&ver=5.5.1:4)

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